Sh:E51

Bib entry
@article{Sh:E51,
 author = {Shelah, Saharon and Soifer, Alexander},
 title = {{Axiom of choice and chromatic number: examples on the plane}},
 journal = {J. Combin. Theory Ser. A},
 fjournal = {Journal of Combinatorial Theory. Series A},
 volume = {105},
 number = {2},
 year = {2004},
 pages = {359--364},
 issn = {0097-3165},
 mrnumber = {2046089},
 mrclass = {03E25 (05D10)},
 doi = {10.1016/j.jcta.2004.01.001}
}