@book{35774,
	author = {Calin, Ovidiu. and Chang, Der-Chen. and SpringerLink (Online service)},
	title = {Heat Kernels for Elliptic and Sub-elliptic Operators},
	publisher = {Birkhäuser Boston,},
	year = {2011.},
	series = {Applied and Numerical Harmonic Analysis},
	address = {Boston :},
	edition = {1.},
	url = {http://dx.doi.org/10.1007/978-0-8176-4995-1}
}