@book{20862,
	author = {Smith, R. A. },
	title = {proceedings of the International School of Physics "Enrico Fermi", course XXII, Varenna on Lake Como ... June 19-July 1, 1961 / },
	publisher = {Academic, },
	year = {c1963.},
	address = {New York : },
	note = {Includes Index. }
}