To cite package 'OPSR' in publications use: Heimgartner D, Wang X, tbc (2024). “OPSR: A package for estimating ordinal probit switching regression models in R.” _tbc_. A BibTeX entry for LaTeX users is @Article{, title = {OPSR: A package for estimating ordinal probit switching regression models in R}, author = {Daniel Heimgartner and Xinyi Wang and {tbc}}, journal = {tbc}, year = {2024}, } Wang X, Mokhtarian PL (2024). “Examining the treatment effect of teleworking on vehicle-miles driven: Applying an ordered probit selection model and incorporating the role of travel stress.” _Transportatikon Research Part A_, *186*, 104072. doi:10.1016/j.tra.2024.104072 . A BibTeX entry for LaTeX users is @Article{, title = {Examining the treatment effect of teleworking on vehicle-miles driven: Applying an ordered probit selection model and incorporating the role of travel stress}, author = {Xinyi Wang and Patricia L. Mokhtarian}, journal = {Transportatikon Research Part A}, year = {2024}, volume = {186}, pages = {104072}, doi = {10.1016/j.tra.2024.104072}, }