@article{CMUC_1970_11_4_a13,
     author = {Ad\'amek, Ji\v{r}{\'\i}},
     title = {Some generalizations of the notions limit and colimit},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {823--827},
     year = {1970},
     volume = {11},
     number = {4},
     mrnumber = {0274373},
     zbl = {0209.32301},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1970_11_4_a13/}
}