@article {57,
	title = {Peroxyacetyl nitrates (PAN) and other minor pollutants},
	journal = {Recognition of Air Pollutant Injury to Vegetation: A Pictorial Atlas. 2nd Edition. Air \& Waste Management Association, Pittsburgh, PA.},
	year = {1998},
	pages = {pp 6-1 to 6-2},
	author = {Temple, P.J. and Sun, J.E-J. and Krause, G.H.M.}
}
