RT Article T1 Police professionalism in the European Union JF Police cooperation in the European Union under the treaty of Lisbon SP 101 OP 118 A1 Boer, Monica den 1963- LA English YR 2015 UL https://krimdok.uni-tuebingen.de/Record/1497893453 SN 9783848708437 K1 Polizei K1 Professionalität K1 Kooperation K1 Europäische Union