Nicodemo, L. P., Turíbio e Silva Nicodemo, S. C. and Ibrahim Aloufa, M. A. (2016) “Economic indicators of sustainability for onshore oil fields:: a methodological proposal for indicator selection”, Sustainability in Debate, 7(2), pp. 217–237. doi: 10.18472/SustDeb.v7n2.2016.17715.