@article{PIM_1981_N_S_30_44_a6,
     author = {Kosta Do\v{s}en},
     title = {Minimal {Modal} {Systems} in {Which} {Heyting} and {Classical} {Logic} can be {Embedded}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {41 },
     publisher = {mathdoc},
     volume = {_N_S_30},
     number = {44},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1981_N_S_30_44_a6/}
}