Jucherski, Andrzej; Golka, Wieslaw; Eymontt, Andrzej - European Rural Development Network - ERDN - 2005
Mountains and hilly regions in Poland are very important for Polish economy because they do not only account for 8% of Polish territory, but also fulfil a significant role in environmental protection of water supply for the rivers, in tourism and in the ecological chain of plants and animals....