@article{JRAM_1997__482_153884,
     author = {Friederich Knop},
     title = {Integrality of two variable {Kostka} functions.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {177--190},
     publisher = {mathdoc},
     volume = {482},
     year = {1997},
     zbl = {0876.05098},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1997__482_153884/}
}