@conference {tsikouras2005investigation,
	title = {Investigation for the suitability of basic ophiolitic rocks from the Mikroklissoura Grevena area as anti-skid aggregate material and railroad ballast},
	booktitle = {Proc. of the 2nd Conference of the Committee of Economical Geology, Mineralogy and Geochemistry},
	year = {2005},
	pages = {347{\textendash}356},
	author = {Tsikouras, B and Pomonis, P. and Rigopoulos, I and Hatzipanagiotou, K}
}
