@techreport{BrunsGubeladzeHenketal.1998, author = {Winfried Bruns and Joseph Gubeladze and Martin Henk and Alexander Martin and Robert Weismantel}, title = {A counterexample to an integer analogue of Caratheodorys theorem}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {SC-98-28}, language = {eng}, year = {1998} }