@article{CTGDC_1978__19_2_179_0,
     author = {Rosick\'y, Ji\v{r}{\'\i}},
     title = {Extensions of functors and their applications},
     journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle},
     pages = {179--220},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {19},
     number = {2},
     year = {1978},
     mrnumber = {528346},
     zbl = {0393.18002},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_1978__19_2_179_0/}
}