00736nam0-22002531i-450-990001235360403321000123536FED01000123536(Aleph)000123536FED0100012353620000920d1969----km-y0itay50------baengWhen are projective modules free?by SIMI S, Aron.Kingston [Ontario]Queen's University1969.Queen's papers in pure and applied mathematics21Simis,Aron57153ITUNINARICAUNIMARCBK990001235360403321C-44-(213841MA1MA1When are projective modules free382364UNINAING01