@article {1960,
	title = {Effects of manganese on the viability of vegetative diaspores of the epiphytic lichen Hypogymnia physodes},
	journal = {Environmental and Experimental Botany},
	year = {2002},
	pages = {127-142},
	author = {Hauck, M and Paul, A and Mulack, C and Fritz, E and Runge, M}
}
