TY  - GEN
AU  - Arkowitz, Martin
TI  - Introduction to homotopy theory 
SN  - 9781441973283
PY  - 2011///
CY  - New York
PB  - Springer
KW  - Homotopy theory
KW  - Cofibrations - Fibrations
KW  - Homotopy sets
ER  -