00913nas a2200253 i 450099100265524970753620231114120551.0011205c19769999ii || | |eng d0250-9628b11689584-39ule_instPERLE004715ExLCDU 001.8Journal of combinatorics information and systems sciencesJournal of combinatorics information and systems sciences. - 1976-Delhi,1976-Codice CNR: P 00077991LE013 1990;J. combin. inform. system sci..b1168958404-08-1408-07-02991002655249707536LE0131le013-E0.00-no 180000.i1191969308-07-02Journal of combinatorics information and systems sciences. - 1976-3591525UNISALENTOle01301-01-01sa -engii 01