TY  - JOUR
AU  - Hilton, Peter
AU  - Roitberg, Joseph
TI  - Relative epimorphisms and monomorphisms in homotopy theory
JO  - Compositio Mathematica
PY  - 1987
SP  - 353
EP  - 367
VL  - 61
IS  - 3
PB  - Martinus Nijhoff Publishers
UR  - http://www.numdam.org/item/CM_1987__61_3_353_0/
LA  - en
ID  - CM_1987__61_3_353_0
ER  -