@article {4665,
	title = {Parmelia ernstiae, P. serrana and P. submontana, three species increasing in the Nordic countries},
	journal = {Graphis Scripta},
	volume = {29},
	year = {2017},
	pages = {24-32},
	url = {https://www.researchgate.net/publication/316473093},
	author = {Thell, A. and Tsurykau, A. and Persson, P.-E. and Hansson, M. and {\r A}seg{\r a}rd, E. and K{\"a}rnefelt, I. and Seaward, M.R.D.}
}
