Abstract order type extension and new results on the rectilinear crossing number.

Oswin Aichholzer Hannes Krasser Abstract order type extension and new results on the rectilinear crossing number. 2-15 2007 36 Comput. Geom. 1 http://dx.doi.org/10.1016/j.comgeo.2005.07.005 db/journals/comgeo/comgeo36.html#AichholzerK07