Book Tomash, Erwin; Williams, Michael R. (2009)
The Erwin Tomash Library on the History of Computing: An Annotated and Illustrated Catalog. (/isis/citation/CBB001021244/) unapi

Article Williams, Michael R.; Tomash, Erwin (2003)
The Sector: Its History, Scales, and Uses. IEEE Annals of the History of Computing (pp. 34-47). (/isis/citation/CBB000300428/) unapi

Article Tomash, Erwin (1988)
The Madrid promptuary. IEEE Annals of the History of Computing (pp. 52-67). (/isis/citation/CBB000059503/) unapi

Article Tomash, Erwin; Cohen, Arnold A. (1979)
The birth of an ERA: Engineering Research Associates, Inc., 1946-1955. IEEE Annals of the History of Computing (pp. 83-97). (/isis/citation/CBB000005852/) unapi