TY  - JOUR
AU  - Pultr, Aleš
AU  - Tholen, Walter
TI  - Free Quillen factorization systems.
JO  - Georgian Mathematical Journal
PY  - 2002
SP  - 807
EP  - 820
VL  - 9
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/GMJ_2002__9_4_50826/
LA  - en
ID  - GMJ_2002__9_4_50826
ER  -