The AT&T AST OpenSource software collection
Glenn S. Fowler, David G. Korn, Stephen S. North, Kiem-Phong Vo · USENIX Annual Technical Conference · 2000
This paper introduces a large collection of reusable software components that AT&T is making available in an OpenSource form. This software has been widely used around the world and includes well-known components such as KornShell, Nmake, Graphviz, Sfio, Vmalloc and Cdt.