I am currently in the process of writing my thesis about copositive matrices and would like to write a chronological narrative about the ascent of these matrices to the prominent place they have today (as an introduction and overview of their place in mathematics). So I've been entertaining myself with reading the early works by Diananda, Motzkin, Gaddum and Hall & Newman and others. However, the most 'original' paper of them all, 'Copositive quadratic forms' by Motzkin from 1952, which is the very first paper discussing the concept, I can't find anywhere. I'm very interested in reading it, in order to find out why Motzkin considered them and how they fit in with his other interests. I also find that these early papers are quite inspiring for new ideas and since Motzkin was an especially talented mathematician I am wondering what his first approach was. Help would be appreciated!



Finding Motzkin's original paper on copositive quadratic forms
[Hall and Newman (1963)](https://doi.org/10.1017/S0305004100036951) cite this work as



> 
> Motzkin, T., Copositive quadratic forms. National Bureau of Standards Report 1818 (1952), pp. 11–12.
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This cited part of the NBS report is available online at [this link on pages 259-260](https://babel.hathitrust.org/cgi/pt?id=uiug.30112008083039&view=1up&seq=259). Please notice however that it's not a standalone work, but rather a review of other (possibly unpublished) manuscripts.


