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@article{Authenticus:P-00Y-RS9, title = {{Presentations of finitely generated cancellative commutative monoids and nonnegative solutions of systems of linear equations}}, author = {Chapman S.T. and García-Sánchez P.A. and Llena D. and Rosales J.C.}, doi = {10.1016/j.dam.2006.03.013}, journal = {Discrete Applied Mathematics}, number = {14}, pages = {1947-1959}, publisher = {Elsevier BV}, type = {Article}, volume = {154}, year = {2006} }