Mar Pérez-Sanagustín Davinia Hernández Leo Josep Blat Conditioning Factors for Group Management in Blended Learning Scenarios. 233-235 2009 ICALT http://dx.doi.org/10.1109/ICALT.2009.94 conf/icalt/2009 db/conf/icalt/icalt2009.html#Perez-SanagustinLB09