TY  - BOOK
AU  - Newmann Klaus
AU  -  steinhardt Ulrich
TI  - Gert networks and the time-oriented evaluation of projects
T2  - Lecture notes in economics and mathematical systems
U1  - B2893N, L9 
PY  - 1979///
CY  - Berlin
PB  - Springer Verlag        
KW  - Gert network
N1  - Appendix A1-A3, 250-259p
ER  -