Coloos, J. ., M. . Pyrz, and T. . Messager. “Orientation Optimale Des Fibres Dans Les Plaques Composites Multicouches”. European Journal of Computational Mechanics, vol. 7, no. 7, July 1998, pp. 811-24, https://journals.riverpublishers.com/index.php/EJCM/article/view/3053.