[goto11]

Why are those PDF's so ugly? It would be so much more readable if it was just a regular web page.

(And sorry for the negativity since this is a fascinating article. But I'm genuinely curious why the this PDF is so ugly, since I'm sure the original published version looked significantly better, and the text seems to have been OCR'ed)

[Jtsummers]

Google can help you out: http://sunnyday.mit.edu/16.355/parnas-criteria.html (4th result for me)

[goto11]

Thanks!

[_Microft]

Have a look at the footer of a page of the PDF. It says „Communications of the ACM, Decembre 1972, Volume 15, Number 12“ there.

It is a scan of an old article from a journal.