@book {9783895765285, 
	title = "Build Your Own Multifunctional 4-Axis CNC Machine",
	isbn = "9783895765285",
	edition = "1",
	url = "http://www.content-select.com/index.php?id=bib_view&ean=9783895765285",
	url = "https://content-select.com/de/portal/media/view/63e3a678-36d0-4ef8-b868-328bac1b000f",
	publisher = "Elektor",
}