@mastersthesis {2872,
	title = {De quelques Vals{\'e}es von H{\"o}hnel, parasites des arbres {\r a} noyaux d{\'e}p{\'e}rissants},
	volume = {PhD},
	year = {1935},
	pages = {109 pp},
	url = {http://e-collection.library.ethz.ch/view/eth:21771?lang=en},
	author = {D{\'e}fago, G.}
}
