@article{MT_1989_12_a3,
     author = {L. L. Maksimova},
     title = {Interpolation in modal logics of an infinite slice that contain the logic $\mathbf{K}4$},
     journal = {Matemati\v{c}eskie trudy},
     pages = {72--91},
     publisher = {mathdoc},
     volume = {12},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_1989_12_a3/}
}