@article{ITA_1980__14_2_193_0,
     author = {Hotz, G\"unter},
     title = {Verschr\"ankte homomorphismen formaler sprachen},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {193--208},
     publisher = {EDP-Sciences},
     volume = {14},
     number = {2},
     year = {1980},
     mrnumber = {581677},
     zbl = {0442.68080},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/ITA_1980__14_2_193_0/}
}