00732nam0-22002891i-450-990002557970403321000255797FED01000255797(Aleph)000255797FED0100025579720000920d1964----km-y0itay50------baENGEnvelopesV.G. Bolytyanskii.OxfordPergamon Press1964.ix, 76 p.22 cmInsiemiStrutture algebriche516Boltyanskii,V.G.335195ITUNINARICAUNIMARCBK990002557970403321MXXVI-A-4433020MASMASEnvelopes437022UNINAING01