@article {Helmis2003405,
	title = {Estimation of transboundary air pollution on the basis of synoptic-scale weather types},
	journal = {International Journal of Climatology},
	volume = {23},
	number = {4},
	year = {2003},
	pages = {405-416},
	url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-0344511678\&doi=10.1002\%2fjoc.892\&partnerID=40\&md5=fa84f8f64ca91d4e8433ba74208df5b1},
	author = {Helmis, C.G. and Moussiopoulos, N. and H. A. Flocas and Sahm, P. and Assimakopoulos, V.D. and Naneris, C. and Maheras, P.}
}
