OUKOUISS, A.; DAANOUN, A. Nematic van der Waals Free-energy. Journal of Scientific Research, [S. l.], v. 1, n. 3, p. 409–421, 2009. DOI: 10.3329/jsr.v1i3.2595. Disponível em: https://banglajol.info/index.php/JSR/article/view/2595. Acesso em: 24 may. 2022.