Kalantaryan, S. and Martin, I. (2015), Reforming the EU Bleu Card a Labour Migration Policy Toll?, Migration Policy Centre, EUI, 2015/08, May 2015, p. 11.
Kalantaryan, S. in Martin, I. (2015), Reforming the EU Blue Card as a Labour Migration Policy Tool? (Reforma modre karte EU kot orodje politike na področju delovnih migracij), Center za migracijsko politiko, EUI, 2015/08, maj 2015, str. 11.