FRĄCKOWIAK, MACIEJ, JERZY KACZMAREK, and ŁUKASZ ROGOWSKI. 2021. “RE-CLOSED BORDER AS AN EVERYDAY EXPERIENCE. EXPLORATORY RESEARCH OF POLISH-GERMAN TWIN CITIES IN THE FIRST MONTHS OF A COVID-19 PANDEMIC”. Society Register 5 (4):61-74. https://doi.org/10.14746/sr.2021.5.4.04.