TY - BOOK AU - Flachsmeyer J ed. ED - Symposium on Contributions to extension theory of Topological Structures( 1967 : Berlin ) ED - Symposium on Contributions to extension theory of Topological Structures TI - Proceedings U1 - 514.224 PY - 1969/// CY - Berlin PB - Springer-Verlag KW - Manifolds KW - Topology ER -