TY - DATA AU - J. M. Boardman AU - R. M. Vogt TI - Homotopy Invariant Algebraic Structures on Topological Spaces T2 - Lecture Notes in Mathematics SN - 9783540377993 PY - 1973/// CY - Heidelberg PB - Springer Berlin KW - Mathematics and Statistics UR - https://doi.org/10.1007/BFb0068547 ER -