Sage on the stage or bore at the board? - Kramer, Michael W. (Communication Education, 2017)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wMzYzNDUyMy4yMDE2LjEyNzIxMjk