@conference {1132, title = {Estimation for a student collaboration hours management system at the University of Costa Rica: a case study}, booktitle = {2021 IEEE V Jornadas Costarricenses de Investigaci{\'o}n en Computaci{\'o}n e Inform{\'a}tica (JoCICI)}, year = {2021}, publisher = {IEEE}, organization = {IEEE}, doi = {10.1109/jocici54528.2021.9794343}, url = {https://doi.org/10.1109/jocici54528.2021.9794343}, author = {Jose Daniel Sanchez Castillo and Marcelo Jenkins} }