01271nam a2200361 i 450099100369544970753620021220115345.0020610s1985 us ||| | eng 0273086715b11849411-39ule_instLE01313539ExLDip.to Matematicaeng512.2AMS 20M10AMS 20M20LC QA171.P385Pastijn, F. J.441767Regular semigroups as extensions /F.J. Pastijn & M. PetrichBoston :Pitman,1985188 p. ;25 cm.Research notes in mathematics, ISSN 07430337 ;136"Pitman advanced publishing program."Includes index.Bibliography: p.182-184Group extensions (Mathematics)SemigroupsPetrich, Marioauthorhttp://id.loc.gov/vocabulary/relators/aut58119.b1184941128-04-1720-12-02991003695449707536LE013 20M PAS11 (1985)12013000132129le013-E0.00-l- 00000.i1210194120-12-02Regular semigroups as extensions83349UNISALENTOle01301-01-02ma -engus 01