@book {9783800109999, 
	title = "Alles über Gehölzschnitt",
	author = "Pirc, Helmut",
	isbn = "9783800109999",
	year = "2017",
	edition = "3",
	keywords = "Garten, Baumschnitt, Obstbaumschnitt, Schnittregeln, Gehölz, Gehölzschnitte",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783800109999",
	url = "https://content-select.com/de/portal/media/view/58bfe4d7-a934-44e0-9abc-159db0dd2d03",
	publisher = "Verlag Eugen Ulmer",
	language = "ger",
}