Hänsch Beuren, F., Ferreira, M.G.G., Zancul, E. de S. and Cauchick Miguel, P.A. 2014. Content analysis of publications on product-service systems. Revista Produção Online. 14, 1 (Feb. 2014), 35–57. DOI:https://doi.org/10.14488/1676-1901.v14.i1.1405.