OPPIA: A context-aware ubiquitous learning platform to exploit short-lived student networks for collaborative learning

1. Bravo-Torres, J.F.
2. Robles-Bykaev, V.E.
3. López-Nores, M.
4. Ordoñez-Morales, E.F.
5. Blanco-Fernández, Y.
6. Gil-Solla, A.