Martins, N.C. e Ribeiro, G.F. 2019. The “grave risk exception”, efficiency and the Hague Convention on Child Abduction: a Law and Economics Approach. Revista Opinião Jurídica (Fortaleza). 17, 24 (jan. 2019), 177–203. DOI:https://doi.org/10.12662/2447-6641oj.v17i24.p177-203.2019.