TY  - BOOK
AU  - Baues Hans Joachim
TI  - Commutator calculus and groups of homotopy classes
T2  - London mathematical society lecture not series; 50
U1  - B393M, M1 
PY  - 1981///
CY  - Cambridge
PB  - Cambridge university        
KW  -  Homology theory
KW  - Algebraic topology
N1  - Bibliography 156-158p
ER  -