TY  - BOOK
AU  - Lehman, M.M, ed.
TI  - Program evolution: processes of software change
SN  - 0124424406
U1  - 005.1 21st ed.
PY  - 1985///
CY  - London
PB  - Academic Press
KW  - Computer software-development
KW  - Programming (Electronic computers) - History
N1  - Index: p. 523-38
ER  -