@book{10692,
	author = {Glendenning, Norman K.},
	title = {Special and general relativity},
	publisher = {Springer Publishing Company},
	year = {2007},
	address = {New York},
	url = {https://libgen.is/book/index.php?md5=69694BF1E01C9BDA067ABA9EAB2CF95F}
}