To cite package gvcm.cat in publications use:
Oelker, M.-R. (2015). gvcm.cat: Regularized Categorical Effects/Categorical Effect Modifiers/Continuous/Smooth Effects in GLMs. R package version 1.9.
Corresponding BibTeX entry:
@Manual{, title = {{gvcm.cat}: Regularized Categorical Effects/Categorical Effect Modifiers/Continuous/Smooth Effects in GLMs}, author = {Margret-Ruth Oelker}, year = {2015}, note = {R package version 1.9}, }