@article{ARM_1976_12_1_a4,
     author = {Dal{\'\i}k, Josef},
     title = {Verbandstheoretische {Eigenschaften} von {Sprachen}},
     journal = {Archivum mathematicum},
     pages = {31--42},
     year = {1976},
     volume = {12},
     number = {1},
     mrnumber = {0468337},
     zbl = {0348.68043},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/ARM_1976_12_1_a4/}
}