@article{PIM_1980_N_S_28_42_a12,
     author = {Aleksandar Jovanovi\'c},
     title = {A {Note} on the two {Cardinal} {Problem}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {99 },
     publisher = {mathdoc},
     volume = {_N_S_28},
     number = {42},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1980_N_S_28_42_a12/}
}