Book review: Constitutionalising the External Dimensions of EU Migration Policies in Times of Crisis by Sergio Carrera, Juan Santos Vara and Tineke Strik.(Cheltenham: Edward Elgar, 2019) - Common Market Law Review View Book review: Constitutionalising the External Dimensions of EU Migration Policies in Times of Crisis by Sergio Carrera, Juan Santos Vara and Tineke Strik.(Cheltenham: Edward Elgar, 2019) by - Common Market Law Review Book review: Constitutionalising the External Dimensions of EU Migration Policies in Times of Crisis by Sergio Carrera, Juan Santos Vara and Tineke Strik.(Cheltenham: Edward Elgar, 2019) 57 5 Common Market Law Review