Model specification and theoretical development in gratifications sought and obtained research: A comparison of discrepancy and transactional approaches - Wenner, Lawrence A. (Communication Monographs, 1986)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wMzYzNzc1ODYwOTM3NjEzNA