Zālītis, I., Soboļeva, D., & Madžule, I. (2016). PROFESSIONAL TRAINING OF THE STATE BORDER GUARD OFFICIALS OF THE REPUBLIC OF LATVIA: ESSENTIALS, CHALLENGES AND POSSIBLE SOLUTIONS. BORDER SECURITY AND MANAGEMENT, 1(6), 123-135. https://doi.org/10.17770/bsm.v1i6.1708