@article{JGAA_2012_16_2_a12,
     author = {Reinhard Bauer and Gianlorenzo D'Angelo and Daniel Delling and Andrea Schumm and Dorothea Wagner},
     title = {The {Shortcut} {Problem} - {Complexity} and {Algorithms}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {447--481},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2012},
     doi = {10.7155/jgaa.00270},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00270/}
}