Pham, C. N., Garlatti, S., Lau, S., Barbry, B., & Vantroys, T. (2008). Pervasive Learning System Based on a Scenario Model Integrating Web Service Retrieval and Orchestration. International Journal of Interactive Mobile Technologies (iJIM), 3(2), pp. 25–32. https://doi.org/10.3991/ijim.v3i2.737