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I have a basic question that others have definitely considered.

Often there are papers that originally appeared in a language that one might not understand (and I mean a natural language here). I would like to cite the original paper, because that is where the credit belongs. But on the other hand, doing so violates the golden-rule of read that paper that you cite! What should I do to overcome this dilemma?

So far, I have always cited the original, and if possible some other related work that has appeared in English---but sometimes, reviewers write back that I should not be citing papers written in a language different from English, which is what motivated me to ask this question.

Thanks for any useful advice.

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It's crazy not to cite papers in a language other than English. What area of math are we talking about? Of course if the paper later appeared in English translation you could cite the translation instead, but lots of stuff in French, say, has never been translated into English. –  KConrad Oct 22 '10 at 8:37
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reviewers write back that I should not be citing papers in a language different from English ??? –  Chandan Singh Dalawat Oct 22 '10 at 9:01
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Many authors cite papers they have never seen, let alone never read :-) –  Robin Chapman Oct 22 '10 at 9:07
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Oh dear, then the reviewer is even crazier than I imagined. I thought we might have been talking about a reference in, say, Japanese. French is the easiest second mathematical language to read if you already know English but not yet any of French, German, or Russian (the other main mathematical languages, at least as represented on the traditional lists of choices for language exams in graduate school in the US). Ignore the reviewer's remarks, and if you're concerned then ask the editor you are in correspondence with about such remarks. –  KConrad Oct 22 '10 at 9:10
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If you cannot read the paper but another paper explains what is says can you not adopt the phrasing 'x records in [1] that y proved in [2] that...' or something similar. –  Simon Wadsley Oct 22 '10 at 11:43

3 Answers 3

up vote 39 down vote accepted

I think a common-sense approach is to cite the original paper (whatever the language) in order to give credit and attribution but only rely on arguments from papers you can understand in your proofs (so you don't violate the golden rule).

Regarding reviewers, the worst that can happen (I think) is that you use a crucial argument from a paper you can understand but that the reviewer cannot understand. In that case, I think the problem is the same whether the reviewer cannot understand it because he is unfamiliar with the math or because he is unfamiliar with the natural language. In both cases, you, as the author, should try to present relatively clear references, and that includes translations when appropriate I guess, but ultimately this is a failure of the reviewer. If I were reviewing a paper and found myself in this situation, I would politely ask the author if there is a translation available. If not, I would tell the editors I am not competent, but wouldn't blame the author.

It is a bad idea to upset reviewers, but banning reference in languages other than English (or any other language) even for attribution purpose is an outrageous suggestion that should not be complied with.

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Partly with the point of summarizing other answers/remarks: there are several points mixed together here. There is the issue of recognizing "prior art" (whether or not one's present work depends upon it). There is the issue of recognizing "necessary background" (often logically prior to the work in question). There is the issue of "competing, perhaps incomplete work" (to be civil, as well as being a mensch and informing readers about it). There is "compliance-necessitated reference", as in "icons" which, if not cited, will make the skeptical quasi-expert reader doubt the competence of the author.

Of course, there have been times in which otherwise-intelligent people did not realize they should write in English. (Sorry, part of my reason for making an "answer" was to publicly form that sentence. I did grow up in midwestern, mid-20th-century U.S., and was led to believe that people who didn't speak English were just being obstructionist jerks, since obviously English was the universal natural language... whew!)

Another perversity: more than one historically-famous mathematician has let slip to me in conversation that they take the viewpoint that not looking at someone else's paper relieves them from any obligation to cite it [even if it is prior work]. Not to my taste.

More perverse than pretending to ignore others' work is the actualy benefit their work may give you/one, even, or perhaps especially, if one hasn't assimilated it yet. As a historical example, it confused me for a decade or two that Siegel and Harish-Chandra (both at IAS) had apparently not communicated... ever?... so that the "holomorphic discrete series", visible in Siegel's and H. Braun's work in the late 1930's, were not visible... and, then, contrariwise, Shimura and other "modern" automorphic forms people seemed functionally oblivious to H-C's work 10-15 years earlier.

Must/should one personally certify anything cited? Well, sure, obviously, this would be desirable. Also, not feasible. Of course, if you're counting on the correctness of an obscure paper, you are on thin ice. If you're counting on correctness of an already-often-cited paper, then you are in better shape. No mystery here. Refereeing does not assure correctness, just makes it a tad more likely. If you claim to prove something scandalous, people will revisit all those innocent-seeming papers you cite. "Just the obvious." (But, contrary to the professional pose that ... oh, ... published papers are first-order predicate-logic ... correct? A needless conceit, of course, and we should not slip into it.)

The editorial pressures are corruptive. Yes. The professional competitive pressures are potentially corruptive, yes. But I think if we are honest with ourselves we can see what acknowledgements we should make. Prior work, even if we don't use it. Even if we are competitors. Give the reader (supposing they care!) a guide about how to arrive ... here.

Depending on how one understands the word, I think that, happily (to me) "honesty" is a good guide.

Oop, "was it in English?" What? Um... My own discussion, and all others, indicate that this cannot possibly be a legitimate issue. Write to the editor. But it is a "stimulating" question. :)

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I thought the universal natural language was Esperanto: en.wikipedia.org/wiki/Natural_language –  YangMills Jul 23 '12 at 1:28
    
Interesting way to put things :-) –  Suvrit Jul 23 '12 at 17:49

I think it's completely unreasonable to expect authors to have read and completely understood the details of every paper that they cite in their references. Most authors certainly do not do that. We'd never have time to write any of our own papers if we had to thoroughly digest every single other paper that is relevant to our work. As I see it, the rules should be: (1) don't cite anything you don't refer to in the paper. (2) only cite those papers which are relevant to your work, although it's okay to have some papers in your references which are only cited in the sense of "papers [x] and [y] and [z] also consider similar problems..." and (3) you should completely understand the statement of any result you use. If you haven't actually checked the details of the proof, most mathematicians with experience in their fields can skim over a proof and decide whether or not they believe it. If the reference has been published and later turns out to be incorrect (which sadly happens all too often) then you cannot be held responsible for that.

Of course, the language of the paper you cite is completely irrelevant. I've never before heard of a referee caring about this.

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After thinking about this for a minute, it struck me that this so called 'golden rule' might be sub-field specific. Perhaps in number theory people do carefully check every result they use? In geometric analysis it is certainly not feasible to do this. Maybe this is a good discussion to have elsewhere? –  Spiro Karigiannis Oct 22 '10 at 12:39
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I don't think it's necessary to have read the whole paper in order to cite it, but you need to point to a precise result in the reference, and explain the translation between the result as it's stated, and the results as you use it. I find it annoying when I see stg like "by [6], we have..." when [6] is a book, especially when the author of the paper is unable to say where in the book the result is when you ask him. –  Laurent Berger Oct 22 '10 at 12:45
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@Spiro: (Hello!) "Perhaps in number theory people do carefully check every result they use?" Your statement is missing a quantifier, which we number theorists tend to be pickier about than analysts. There exist people in number theory who....? Yes, I believe so. All people in number theory....? Not by a long shot. Most people don't, of course. –  Pete L. Clark Oct 22 '10 at 13:18
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I think the rule (1) don't cite anything you don't refer to in the paper' is misguided. References should be helpful. Why can one not point to sources that are probably helpful, without saying in the text: See also [2], [7], [9]' ? –  Wilberd van der Kallen Oct 22 '10 at 13:48
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Concerning rule (1), Spiro says in (2) that citations to related work are okay. So Wilberd's question is addressed in (2). If a reference in the bibliography truly is cited nowhere at all in the paper, not even at the level of "See [15] for a related theorem", then I think it would be odd and I can understand why editors don't want that. Why stick something in the references which is referred to nowhere at all? –  KConrad Oct 22 '10 at 15:13

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