Student modeling services for hybrid web applications. - Iván Cruces; Mónica Trella; Ricardo Conejo; Jaime Gálvez (WABBWUAS@UMAP, 2010)

INGRID: A Web Service Tool for Hierarchical Open Learner Model Visualization. - Ricardo Conejo; Mónica Trella; Iván Cruces; Rafael García (UMAP Workshops, 2011)