@book{13309,
	author = {Ewald, Peter Paul,},
	title = {P.P. Ewald and his dynamical theory of X-ray diffraction :},
	publisher = {International Union of Crystallography ;},
	year = {1992.},
	address = {[Chester, Eng.] :},
	url = {http://www.loc.gov/catdir/enhancements/fy0606/92009876-d.html}
}