@techreport{HenkWeismantel1997, author = {Martin Henk and Robert Weismantel}, title = {Hilbert bases of cones related to simultaneous Diophantine approximations and linear Diophantine equations}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {SC-97-29}, language = {eng}, year = {1997} }