https://www.researchgate.net/profile/Wafa-Lejmi/publication/372236975_Spatio-Temporal_Violence_Classification_Based_on_Material_Derivative_and_Deep_Learning_Models_Thesis/links/64abe24b95bbbe0c6e24b134/Spatio-Temporal-Violence-Classification-Based-on-Material-Derivative-and-Deep-Learning-Models-Thesis.pdf