Hubert de Fraysseix Patrice Ossona de Mendez Stretching of Jordan Arc Contact Systems. 71-85 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2912&spage=71 2003 conf/gd/2003 Graph Drawing db/conf/gd/gd2003.html#FraysseixM03