Partitioning Planar Graphs with Vertex Costs: Algorithms and Applications.

Hristo Djidjev Partitioning Planar Graphs with Vertex Costs: Algorithms and Applications. 51-75 2000 28 Algorithmica 1 http://link.springer.de/link/service/journals/00453/contents/00/10031/ db/journals/algorithmica/algorithmica28.html#Djidjev00