@article{ontheuseoffirstandsecondderivative, title = {On the use of first and second derivative approximations for biometric online signature recognition}, author = {Marcos Faundez-Zanuy and Moises Diaz}, year = {2024}, eprint = {2406.00512}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2406.00512v1}, }