To cite equate in publications use:
Albano AD (2016). “equate: An R Package for Observed-Score Linking and Equating.” Journal of Statistical Software, 74(8), 1–36. doi:10.18637/jss.v074.i08.
Corresponding BibTeX entry:
@Article{, title = {{equate}: An {R} Package for Observed-Score Linking and Equating}, author = {Anthony D. Albano}, journal = {Journal of Statistical Software}, year = {2016}, volume = {74}, number = {8}, pages = {1--36}, doi = {10.18637/jss.v074.i08}, }