KOWALCZYK-GAJEWSKA, Katarzyna; OSTROWSKA-MACIEJEWSKA, Janina. Review on spectral decomposition of Hooke’s tensor for all symmetry groups of linear elastic material. Engineering Transactions, [S. l.], v. 57, n. 3-4, p. 145–183, 2009. DOI: 10.24423/engtrans.172.2009. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/172. Acesso em: 5 dec. 2025.