Beattie, Peter M. “The Slave Silvestre’s Disputed Sale: Corporal Punishment, Mental Health, Sexuality, and ‘Vices’ in Recife, 1869-1879”. EIAL - Estudios Interdisciplinarios De América Latina Y El Caribe, vol. 16, no. 1, Jan. 2005, doi:10.61490/eial.v16i1.477.