Encouraged by Does anyone have an electronic copy of Waldspurger's "Sur les coefficients de Fourier des formes modulaires de poids demi-entier"? I realized I could ask for this rare item here.
Again, it is Yury G. Teterin's 1984 (Russian) preprint "Representation of numbers by spinor genera." For whatever reason (possibly length?) it never made it into the usual Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR.
Let me give some detail. I do not know the number of pages. The preprint probably never appeared elsewhere, at least not under the same title. It was probably never translated into English. No American mathematics library admits to having it. The easiest place to find mention of the preprint is in Math Reviews MR0732548 (86d:11042) which is a review, by Oleg M. Fomenko, of Schulze-Pillot's 1984 "Thetareihen positiv definiter quadratischer Formen." (I do not know how to make the MR reference a link).
The preprint is mentioned in a later related item by the same author that has been translated, see
http://www.springerlink.com/content/t701481j73531761/
as well as one by Elena P. Golubeva
http://www.springerlink.com/content/w740g82624753417/
Finally, I have emailed Teterin with no result so far. If nothing happens for a long time I could write to O. M. Fomenko and see what happens. The three people in St. Petersburg that I have mentioned are
http://www.mathnet.ru/php/person.phtml?option_lang=eng&personid=25046
http://www.mathnet.ru/php/person.phtml?option_lang=eng&personid=22736
http://www.mathnet.ru/php/person.phtml?option_lang=eng&personid=33524
Well, thanks for any assistance. Individual replies are always welcome, one of my email addresses can be found through http://www.ams.org/cml
EDIT, May 2021: the pdf is on one of my websites
direct link TETERIN
Let me point out that there are the strongly related Golubeva_Fomenko_1984.pdf in English translation, as well as Schulze_Pillot_1984_Darstellungsmasse.pdf and Schulze_Pillot_1984_Thetareihen.pdf in these cases still in German. Also Math Reviews of most of the papers for which I lack a translation into English.