TY  - BOOK
AU  - Lyndon, Roger C.
AU  - Schupp, Paul E.
TI  - Combinatorial group theory
SN  - 9783540411581
U1  - 511.6 
PY  - 2001///
CY  - United States of America
PB  - Springer
N1  - includes bibliographical references and index
ER  -