Köster, P., H. Knobbe, C.-P. Fritzen, H.-J. Christ, and U. Krupp. “A Three-Dimensional Model for Stage I-Crack Propagation”. Technische Mechanik - European Journal of Engineering Mechanics 30, no. 1-3 (July 30, 2019): 185–194. Accessed May 5, 2024. https://journals.ub.ovgu.de/index.php/techmech/article/view/790.