TY - BOOK A2 - Möller, Bernhard A2 - Partsch, Helmut A2 - Schuman, Steve T1 - Formal program development: IFIP TC 2/WG 2 1 state of the art report Y1 - 1993 UR - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/88030 SN - 9783540574996 SN - 9783540481973 SN - 0302-9743 SN - 1611-3349 PB - Springer CY - Berlin ER -