Abdolah, can you elaborate on what you mean by the "success of learning management systems"? Do you mean on how well it was used to provide learning outcomes or how well it was implemented to meet the university's needs?
Islam, A. K. M. 2014. Sources of satisfaction and dissatisfaction with a learning management system in post-adoption stage: a critical incident technique approach. Computers in Human Behavior 30, 249-261.