@article{CMUC_1975_16_2_a9,
     author = {Trnkov\'a, V\v{e}ra and Ad\'amek, Ji\v{r}{\'\i} and Koubek, V\'aclav and Reiterman, Jan},
     title = {Free algebras, input processes and free monads},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {339--351},
     year = {1975},
     volume = {16},
     number = {2},
     mrnumber = {0371986},
     zbl = {0308.18001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1975_16_2_a9/}
}