Carla Binucci, Walter Didimo, Francesco Giordano. Maximum upward planar subgraphs of embedded planar digraphs. Comput. Geom., 41(3):230-246, 2008. [doi]
@article{BinucciDG08,
title = {Maximum upward planar subgraphs of embedded planar digraphs},
author = {Carla Binucci and Walter Didimo and Francesco Giordano},
year = {2008},
doi = {10.1016/j.comgeo.2008.02.001},
url = {http://dx.doi.org/10.1016/j.comgeo.2008.02.001},
researchr = {https://researchr.org/publication/BinucciDG08},
cites = {0},
citedby = {0},
journal = {Comput. Geom.},
volume = {41},
number = {3},
pages = {230-246},
}