TY - BOOK AU - Guild, Elspeth AU - [et al.] ED - Parlamento Europeo . TI - Internal border controls in the Schengen area: : is Schengen crisis-proof? SN - 978-92-823-9473-1 PY - 2016/// PB - European Parlament KW - Acuerdo de Schengen KW - Control de fronteras KW - Refugiados UR - http://www.europarl.europa.eu/RegData/etudes/STUD/2016/571356/IPOL_STU(2016)571356_EN.pdf ER -