TY - JOUR L1 - http://journals.pan.pl/Content/124208/PDF/5_AE_VOL_26_3_2000_Przylibski_Changes.pdf L2 - http://journals.pan.pl/Content/124208 PY - 2000 IS - No 3 EP - 27 KW - radon KW - radium KW - radon daughter products KW - ionizing radiation KW - adits KW - underground touristroute KW - Lower Silesia KW - Sudety Mountains KW - Góry Sowie mountains A1 - Przylibski, Tadeusz Andrzej PB - Polish Academy of Sciences VL - vol. 26 DA - 04.09.2022 T1 - Changes in the Concentration of Radon-222 and Its Daughter Products in the Air of the Underground Tourist Route in Walim (Lower Silesia) SP - 13 UR - http://journals.pan.pl/dlibra/publication/edition/124208 T2 - Archives of Environmental Protection ER -