@article{MASLO_1978__28_4_a2,
     author = {\v{C}ern\'ak, \v{S}tefan},
     title = {On some types of maximal $l$-subgroups of a lattice ordered group},
     journal = {Mathematica slovaca},
     pages = {349--359},
     publisher = {mathdoc},
     volume = {28},
     number = {4},
     year = {1978},
     mrnumber = {534814},
     zbl = {0403.06011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1978__28_4_a2/}
}