@article{articlef6bf12c9,
title   = {Maximum series-parallel subgraph},
author = {Calinescu, Gruia and Fernandes, Cristina Gomes and Kaul, Hemanshu and Zelikovsky, Alexander},
year = {2012},
doi = {10.1007/s00453-011-9523-4},
journal   = {Algorithmica}
}