To cite UBL in publications use:
Branco P, Ribeiro R, Torgo L (2016). “UBL: an R Package for Utility-Based Learning.” CoRR, abs/1604.08079.
Corresponding BibTeX entry:
@Article{, title = {{UBL}: an R Package for Utility-Based Learning}, author = {Paula Branco and Rita P. Ribeiro and Luis Torgo}, year = {2016}, ee = {http://arxiv.org/abs/1604.08079}, volume = {abs/1604.08079}, journal = {CoRR}, }