Arbidāne, Iluta, et al. “POSSIBILITIES OF IMPROVEMENT THE PREPAREDNESS OF OFFICERS OF THE BORDER CONTROL AND IMMIGRATION CONTROL STRUCTURAL UNITS OF THE STATE BORDER GUARD FOR SCHENGEN EVALUATION ON-SITE VISITS”. BORDER SECURITY AND MANAGEMENT, vol. 1, no. 6, May 2016, pp. 14-24, https://doi.org/10.17770/bsm.v1i6.1697.