@article{MT_1982_2_a2,
     author = {L. L. Maksimova},
     title = {The {Lyndon} interpolation theorem in modal logics},
     journal = {Matemati\v{c}eskie trudy},
     pages = {45--55},
     publisher = {mathdoc},
     volume = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_1982_2_a2/}
}