Roger Bivand is an emeritus professor at the Norwegian School of Economics. His specialties are Geographical Information Analysis, Statistical programming and Spatial econometrics. Roger is author of numerous R packages and an author of the Applied Spatial Data Analysis with R book.
He has worked on the R-GRASS interface for almost 25 years, see https://doi.org/10.1016/S0098-3004(00)00057-1 an article for the very beginning and a https://av.tib.eu/media/21757 workshop at GFOSS 2002. The most recent FOSS4G 2022 https://rsbivand.github.io/foss4g_2022/modernizing_220822.html workshop materials are available.