Field work in the role of teaching and research of rock propertiesKaru, Veiko; Kolats, Margit; Väizene, Vivika; Anepaio, Ain; Valgma, Ingo5th International Symposium "Topical Problems in the Field of Electrical and Power Engineering". Doctoral School of Energy and Geotechnology : Kuressaare, January 14-19, 20082008 / p. 66-70 : ill