@article{KYB_2012__48_3_a10,
     author = {Langer, Miroslav and Kelemenov\'a, Alica},
     title = {Positioned agents in eco-grammar systems with border markers and pure regulated grammars},
     journal = {Kybernetika},
     pages = {502--517},
     publisher = {mathdoc},
     volume = {48},
     number = {3},
     year = {2012},
     mrnumber = {2975803},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2012__48_3_a10/}
}