Secondary Operations in K-theory and the Generalized Vector Field Problem
Geometry and topology : III Latin American School of Mathematics : proceedings of the School held at the Instituto de Matemática Pura e Aplicada CNPq, Rio de Janeiro, July 1976
Jacob Palis, Jr. and Manfredo do Carmo
Electronics, Telecommunications, IT, Software
Iberkleid, Wolf and Feder, Sam, "Secondary Operations in K-theory and the Generalized Vector Field Problem" (1977). Mathematics Faculty Books and Book Chapters. 8.