@book{16032,
	author = {Enz, Charles P. and Mehra, Jagdish  and Mehra, Jagdish ; jt. ed.},
	title = {Physical reality and mathematical description; collection of essays presented at the sixtieth birthday of Josef Maria Jauch},
	publisher = {D. Reidel},
	year = {1974},
	address = {Holland}
}