@article{MZM_1990_48_3_a14,
     author = {A. L. Rastsvetaev},
     title = {A~propositional logic of {Boolean} recursive programs in which predicate variables appear in conditions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {119--127},
     publisher = {mathdoc},
     volume = {48},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_3_a14/}
}