Solanilla, Leonardo, William O Clavijo, and Yessica P Velasco. “Swimming in Curved Surfaces and Gauss Curvature”. Universitas Scientiarum 23, no. 2 (August 28, 2018): 319–331. Accessed April 19, 2024. https://revistas.javeriana.edu.co/index.php/scientarium/article/view/20893.