@article{ZNSL_1967_4_a18,
     author = {M. G. Rogava},
     title = {On sequential variants of applied predicate calculi},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {189--200},
     publisher = {mathdoc},
     volume = {4},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1967_4_a18/}
}