@article{SM_1984_48_1_a13,
     author = {V. I. Stepanov},
     title = {On the theory of models for intuitionistic logic},
     journal = {Sbornik. Mathematics},
     pages = {223--235},
     publisher = {mathdoc},
     volume = {48},
     number = {1},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1984_48_1_a13/}
}