@article{DMPS_2011_31_1-2_a4,
     author = {Mielniczuk, Jacek},
     title = {Note on the core matrix partial ordering},
     journal = {Discussiones Mathematicae. Probability and Statistics},
     pages = {71--75},
     publisher = {mathdoc},
     volume = {31},
     number = {1-2},
     year = {2011},
     zbl = {1260.15006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMPS_2011_31_1-2_a4/}
}