@article {550,
	title = {Effect of ozone and sulphur on mycorrhizae of Pinus halepensis Mille},
	journal = {Annales des Sciences Forestihres },
	volume = {53},
	year = {1996},
	pages = {849-856},
	author = {Dmaz, G. and Barrantes, O. and Honrubia, M. and Garacia}
}
