Compact Roundtrip Routing for Digraphs. - Lenore Cowen; Christopher G. Wagner (SODA, 1999)

Compact roundtrip routing in directed networks (extended abstract). - Lenore Cowen; Christopher G. Wagner (PODC, 2000)

A Framework for Drawing Planar Graphs with Curves and Polylines. - Michael T. Goodrich; Christopher G. Wagner (J. Algorithms, 2000)

Compact roundtrip routing in directed networks. - Lenore Cowen; Christopher G. Wagner (J. Algorithms, 2004)