@article{ZNSL_1968_8_a1,
     author = {G. V. Davydov},
     title = {Some notes on proof searching in predicate calculus},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {8--20},
     year = {1968},
     volume = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1968_8_a1/}
}