@article{PIM_1981_N_S_30_44_a9,
     author = {Miodrag Kapetanovi\'c},
     title = {A {Tableaux} {System} in {Modal} {Logic}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {65 },
     year = {1981},
     volume = {_N_S_30},
     number = {44},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1981_N_S_30_44_a9/}
}