To cite gtfs2emis in publications use:
Bazzo JP, Pereira RHM, Andrade PR (2022). gtfs2emis: Estimating Public Transport Emissions from GTFS Data. doi:10.31219/osf.io/8m2cy, https://doi.org/10.31219/osf.io/8m2cy.
Corresponding BibTeX entry:
@Manual{, title = {gtfs2emis: Estimating Public Transport Emissions from GTFS Data}, author = {João Pedro Bazzo and Rafael H. M. Pereira and Pedro R. Andrade}, month = {may}, year = {2022}, publisher = {OSF Preprints}, version = {v0.1.0}, doi = {10.31219/osf.io/8m2cy}, url = {https://doi.org/10.31219/osf.io/8m2cy}, }