TY - BOOK AU - Parshin,A.N. AU - Shafarevich,I.R. TI - Algebra T2 - Encyclopaedia of mathematical sciences SN - 3540547002 PY - 1990///- CY - Berlin PB - Springer-Verlag KW - Combinatorial group theory KW - Geometric measure theory N1 - Includes index and bibliography : p. 226-231; v. 7; Combinational group theory applications to geometry ER -