@book{93787,
	author = {Hamacher, Stefan,},
	title = {The drum motor :},
	publisher = {Springer,},
	year = {2020},
	address = {Berlin, Heidelberg :},
	url = {https://link-springer-com.libraryumpsa.idm.oclc.org/book/10.1007/978-3-662-59298-4}
}