@misc{Clemenz_Bruno_(1873-1935)_Heimatkunde, author={Clemenz, Bruno (1873-1935)}, howpublished={online}, publisher={Ferdinand Hirt}, language={niemiecki}, type={book}, title={Heimatkunde von Schlesien}, keywords={1901-2000, 1901-1914, Geografia i nauki o ziemi, Historia, Śląsk}, }