@article{MASLO_1987__37_2_a4,
     author = {Jasem, Milan},
     title = {Pairs of partially ordered groups with the same convex subgroups},
     journal = {Mathematica slovaca},
     pages = {173--189},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {1987},
     mrnumber = {899433},
     zbl = {0615.06005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1987__37_2_a4/}
}