@book{77534,
	author = {Landau, L.D. and and Hamermesh, Morton and Lifshitz, E.M.},
	title = {Classical theory of fields},
	publisher = {Butterworth-Heinemann},
	year = {1998},
	series = {Course of theoretical physics},
	address = {Oxford},
	edition = {4th rev. ed.}
}