@article {2204,
	title = {The use of PDA in fieldwork for geological mapping and structural analysis.},
	journal = {GAIA},
	volume = {14},
	number = {Α},
	year = {2006},
	pages = {57-66},
	url = {http://users.uoa.gr/~evasilak/pages/pdfs/18\%20PDA_GIS_Tectonic_Analysis.pdf},
	author = {Vassilakis, E}
}
