@article{article93d2c6f1, title = {A new approximation algorithm for finding heavy planar subgraphs}, author = {Calinescu, Gruia and Fernandes, Cristina Gomes and Karloff, Howard and Zelikovsky, Alexander}, year = {2003}, doi = {10.1007/s00453-002-1020-3}, journal = {Algorithmica} }