# Any local algebraic group is birationally equivalent to an algebraic group

In this paper, page $6$ the authors state the following:

By Weil’s theorem $[17]$, any local algebraic group is birationally equivalent to an algebraic group.

Where

$[17]$ A.Weil. On algebraic groups of transformations. Amer. J. Math. 77, (1955), 355-391.

I would like to know if I can find that Theorem in a textbook about Algebraic Groups.

PS. I did ask this question in StackExchange, but I got no answer.

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It's not a textbook, but the theorem is proved in the setting of schemes in an expose of Artin in SGA 3. Artin also gives a very sketchy proof of the theorem in his first article in Arithmetic Geometry 1986 (Cornell/Silverman) --- I think I would look there. – anon Mar 25 '12 at 23:42