@book{23026,
	author = {Rao, K. Sankara},
	title = {Introduction to partial Differential Equations},
	publisher = {Prentice Hall },
	year = {2002},
	address = {New Delhi},
	url = {https://libgen.is/book/index.php?md5=95D01C394FF9C3232B98648EECFE80FF}
}