Buettner, T., D. Wilke, A. Roennau, G. Heppner, y R. Dillmann. 2018. «A Scalable, Modular Leg Design for Multi-Legged Stair Climbing Robot»s. Memorias De Congresos UTP 1 (1), 143-52. https://revistas.utp.ac.pa/index.php/memoutp/article/view/1894.