J. de Souza Pinto, L. Aoki Schuwarten, G. Cassoli de Oliveira Júnior, and O. Novaski, “Proposal the application of DMAIC tools and value stream mapping under the perspective of the lean philosophy for process improvement: a case study”, BJO&PM, vol. 14, no. 4, pp. 556–566, Dec. 2017.