@article{DBLP:journals/ijcga/BertolazziCBTT94,
  author    = {Paola Bertolazzi and
               Robert F. Cohen and
               Giuseppe Di Battista and
               Roberto Tamassia and
               Ioannis G. Tollis},
  title     = {How to Draw a Series-Parallel Digraph},
  journal   = {Int. J. Comput. Geometry Appl.},
  volume    = {4},
  number    = {4},
  year      = {1994},
  pages     = {385-402},
  ee        = {http://dx.doi.org/10.1142/S0218195994000215},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}