@techreport{PecherWagler2003, author = {Arnaud P{\^e}cher and Annegret Wagler}, title = {A construction for non-rank facets of stable set polytopes of webs}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {03-21}, language = {eng}, year = {2003} }