Ribeiro, V. P. L., and S. M. da S. Monteiro. “Public and Private Sector Environmental Reporting: Mandatory or Voluntary Regulation?”. Journal of Business and Legal Sciences / Revista De Ciências Empresariais E Jurídicas, no. 26, July 2015, pp. 231-7, doi:10.26537/rebules.v0i26.1012.