TY - GEN AU - Magnus,Wilhelm AU - Karrass,Abraham AU - Solitar,Donald TI - Combinatorial group theory: presentations of groups in terms of generators and relations T2 - Pure and applied mathematics, AV - QA171 .M2 U1 - 512.86 PY - 1966///] CY - New York PB - Interscience Publishers KW - Presentations of groups (Mathematics) N1 - Bibliography: p. 421-435 ER -