@article{article933070cb,
title   = {PPM-HC: a method for helping project portfolio management based on topic hierarchy learnings},
author = {Pinto, Ricardo A. M and Bernardini, Flávia Cristina and Marcacini, Ricardo Marcondes},
year = {2021},
doi = {10.1504/IJBIDM.2021.114469},
journal   = {International Journal of Business Intelligence and Data Mining}
}