@article{KYB_1979_15_5_a5,
     author = {J\"urgensen, H. and Tikovsky, H.-D},
     title = {Abgeschw\"achte {Observabilit\"atsbegriffe} f\"ur stochastische {Automaten}},
     journal = {Kybernetika},
     pages = {388--397},
     year = {1979},
     volume = {15},
     number = {5},
     mrnumber = {554022},
     zbl = {0435.68044},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/KYB_1979_15_5_a5/}
}