@article{KYB_1979__15_4_a1,
     author = {\v{S}ajda, Jozef},
     title = {On probability of first order formulas in a given model},
     journal = {Kybernetika},
     pages = {--271},
     publisher = {mathdoc},
     volume = {15},
     number = {4},
     year = {1979},
     mrnumber = {551571},
     zbl = {0441.03008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1979__15_4_a1/}
}