@article{DAN_1983_270_5_a3,
     author = {M. I. Kanovitch},
     title = {On the implicativity of the lattice of truth-table degrees of algorithmic problems},
     journal = {Doklady Akademii Nauk},
     pages = {1046--1050},
     publisher = {mathdoc},
     volume = {270},
     number = {5},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_270_5_a3/}
}