@article{DMGT_2005_25_1-2_a4,
     author = {Gorgol, Izolda},
     title = {Planar {Ramsey} numbers},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {45--50},
     publisher = {mathdoc},
     volume = {25},
     number = {1-2},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2005_25_1-2_a4/}
}