@book{29534,
	author = {Weinberg, Steven},
	title = {Gravitation and cosmology principles and applications of the general theory of relativity},
	publisher = {John Wiley & Sons Publisher},
	address = {New Delhi},
	url = {https://libgen.is/book/index.php?md5=A51A7FF8FE27D66A8477AB9836D524E0}
}