@article{ARM_1978__14_4_a7,
     author = {Rosick\'y, Ji\v{r}{\'\i}},
     title = {Categories of models of infinitary {Horn} theories},
     journal = {Archivum mathematicum},
     pages = {219--226},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {1978},
     mrnumber = {512765},
     zbl = {0404.18003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1978__14_4_a7/}
}