@article{TRSPY_2011_274_a18,
     author = {Daniyar S. Shamkanov},
     title = {Interpolation properties for provability logics $\mathbf{GL}$ and $\mathbf{GLP}$},
     journal = {Informatics and Automation},
     pages = {329--342},
     publisher = {mathdoc},
     volume = {274},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2011_274_a18/}
}