@software{joseph_2020_4054769, author = {Joseph and MichaƂ Bojanowski and iago-pssjd and Bastiaan Quast and Hadley Wickham and Patrick Anker and gdutz}, title = {larmarange/labelled: labelled 2.7.0}, month = sep, year = 2020, publisher = {Zenodo}, version = {v2.7.0}, doi = {10.5281/zenodo.4054769}, url = {https://doi.org/10.5281/zenodo.4054769} }