@article{AL_1971_10_4_a2,
     author = {L. L. Maksimova},
     title = {Interpretation and separation theorems for the calculi $E$ and},
     journal = {Algebra i logika},
     pages = {376--392},
     publisher = {mathdoc},
     volume = {10},
     number = {4},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1971_10_4_a2/}
}