Erratum: A highly modular and extensible architecture for an integrated IMS-based authoring system: the 〈e-Aula〉 experience (Software - Practice and Experience (10 April 2007) 37:4 DOI: 10.1002/spe.779)

1. Sierra, J.L.
2. Moreno-Ger, P.
3. Martínez-Ortiz, I.
4. Fernández-Manjón, B.