Tang, F., Guo, M., Li, M., & You, I. (2008). An Adaptive Context-Aware Transaction Model for Mobile and Ubiquitous Computing. Computing and Informatics, 27(5), 785–798. https://cai.type.sk/content/2008/5/an-adaptive-context-aware-transaction-model-for-mobile-and-ubiquitous-computing/