@article{PIM2_1981__30(44)_257583,
     author = {Markovic, Zoran},
     title = {On axiomatizability and preservation in {Kripke} models.},
     journal = {Publications de l 'Institut Math\'ematique. Nouvelle S\'erie},
     pages = {111},
     publisher = {mathdoc},
     volume = {30(44)},
     year = {1981},
     zbl = {0497.03028},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/PIM2_1981__30(44)_257583/}
}