Lossmann, E., M. A. Meister, A. Raja, and U. Madar. “Theoretical and Practical Aspects of Shortwave Broadcast Reception in the Baltics”. Elektronika ir Elektrotechnika 92, no. 4 (April 19, 2009): 45-48. Accessed November 23, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/10225.