@article{DAN_1979_245_4_a7,
     author = {D. P. Skvortsov},
     title = {Logic of infinite problems and {Kripke} models on atomic semilattices of sets},
     journal = {Doklady Akademii Nauk},
     pages = {798--801},
     publisher = {mathdoc},
     volume = {245},
     number = {4},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_4_a7/}
}