@article{moretti_salles neto_2008,  title={Nonlinear cutting stock problem model to minimize the number of different patterns and objects},  volume={27},  ISSN={1807-0302},  url={https://www.scielo.br/j/cam/a/hPHRQRNptvm8dfTSYymhG3t/},  number={1},  journal={Computational & Applied Mathematics},  publisher={Sociedade Brasileira de Matemática Aplicada e Computacional},  author={Moretti, Antonio Carlos and Salles Neto, Luiz Leduíno de},  year={2008},  pages={61–78} }