@article{10_21136_CPM_1970_117696,
     author = {Jakub{\'\i}k, J\'an},
     title = {$M$-polars in lattices},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {252--255},
     publisher = {mathdoc},
     volume = {095},
     number = {3},
     year = {1970},
     doi = {10.21136/CPM.1970.117696},
     mrnumber = {0274352},
     zbl = {0199.32202},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1970.117696/}
}