00999nas a22002411 4500 1/50979 020311c19619999enkbrzp a0enk d 0020-580X 23643 Αλφαβητική σειρά International abstracts in operations research Houndmills, Basingstoke, Hampshire [etc.] : Palgrave Press on behalf of the International Federation of Operational Research Societies, 1961- v. ; 23-24 cm. Bimonthly Vol.19, no.1(Feb. 1979)-v.50, no.6(Dec. 1999) English Operations research Abstracts Periodicals. Human Engineering Abstracts Periodicals. International Federation of Operational Research Societies. Operations Research Society of America. ΑΡΧΕΙΟ ΠΕΡΙΟΔΙΚΩΝ 393 Vol.19 no.1(Feb. 1979) - (v.50 no.6(Dec. 1999) Main run 39(1)1989, 42(2-6)1991, 43(1-6)1992