01072nam2-2200313li-450 99000331910020331620180918155415.0000331910USA01000331910(ALEPH)000331910USA010003319102002009091979-------y0itay0103----baengDEGERT network and the time-oriented evaluation of projectsKlaus Neumann and Ulrich SteinhardtBerlin [etc.]Springer-Verlag1979268 p.graf. tav.24 cmLecture notes in economics and mathematical systems1720010003315812001Lecture notes in economics and mathematical systems172NEUMANN,Klaus535577STEINHARDT,Ulrich736424ITsalbcISBD990003319100203316650 LNES (172)8276/CBS65000328303BKSCIRSIAV69020090925USA010927GERT network and the time-oriented evaluation of projects1511851UNISA