@article{KYB_1990__26_1_a2,
     author = {\v{S}t\v{e}p\'an, Jarom{\'\i}r},
     title = {The uncertainty problem in control theory. {I.} {Models} of theories},
     journal = {Kybernetika},
     pages = {31--46},
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {1990},
     mrnumber = {1042230},
     zbl = {0717.93015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1990__26_1_a2/}
}