@conference {Charalampos_Vasilatos_49126597,
	title = {Mineralogical and Petrological Investigation of concrete produced by mixing Lignite Fly Ash from Ptolemais, Northern Greece},
	booktitle = {Proceedings of the 1st Congress of the Economic Geology and Geochemistry, Committee of the Geological Society of Greece},
	year = {2000},
	author = {Vasilatos, Charalampos}
}
