M. I. Manzano Martín, M. N. Redondo Martín, and M. P. Robles Paramio, “Special employment centers in Castile and León 2007-2013: effects of the crisis in relation to these centers’ registered legal personalities”, Rev. estud. coop., vol. 122, pp. 191–218, Jul. 2016, doi: https://doi.org/10.5209/REVE.53241