O. Gabber, Non-negativity of Serre’s intersection multiplicities

Question

This article is cited here and there, but I cannot find it anywhere.

Gabber, O. (1995), Non-negativity of Serre’s intersection multiplicities, Expos ́e `a L’IHES

I checked author's publications, and there are none in 1995.

Answer 1

I have seen this referred to as a preprint before - perhaps this implies it is not formally published and only informally available. I suggest emailing the authors of the papers you've seen citations of this article in - it may produce a copy. In the meantime, the best available published article I can find is an accounting of "Recent Developments on Serre's Multiplicity Conjectures: Gabber's Proof of the Nonnegativity Conjecture" by Paul C. Roberts, published in L'Enseignement Mathématique in 1998.

Here is the Worldcat listing, which contains a link to a freely-available online copy of the article here. It may be browsed both on the website or via downloading a PDF.

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Edit: Takumi Murayama has helpfully added the following two sources referred to in this paper in the comments below: Berthelot's Séminaire Bourbaki talk and Hochster's exposition of Gabber's result.