@article{IM2_1977_11_5_a0,
     author = {S. K. Sobolev},
     title = {On finite-dimensional superintuitionistic logics},
     journal = {Izvestiya. Mathematics },
     pages = {909--935},
     publisher = {mathdoc},
     volume = {11},
     number = {5},
     year = {1977},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1977_11_5_a0/}
}