TY  - JOUR
AU  - Ronald Brown
AU  - Rafael Sivera
TI  - Algebraic colimit calculations in homotopy theory using fibred and cofibred categories
JO  - Theory and applications of categories
PY  - 2009
SP  - 222
EP  - 251
VL  - 22
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TAC_2009_22_a7/
LA  - en
ID  - TAC_2009_22_a7
ER  -