ABOAV, David A. AN ATTEMPT AT AN ALGEBRAIC THEORY OF CRYSTAL STRUCTURE. PART 4. Image Analysis and Stereology, Ljubljana, Slovenia, v. 19, n. 3, p. 169–174, 2011. DOI: 10.5566/ias.v19.p169-174. Disponível em: https://www.ias-iss.org/ojs/IAS/article/view/642. Acesso em: 9 oct. 2024.