[ACM] CACM 9(04) April 1966
(1966)
(1957)
Communications of the ACM
de Bakker, J. W. (1966)
de Bakker, J. W. "On AXLE" p242
Scheff, Benson H. (1966)
Scheff, Benson H. "A Simple User-Oriented Source Language for Programming Automatic Test Equipment"