@book{77349,
	author = {Hadamard, Jacques. and Frechet, Maurice.},
	title = {Leçons sur le calcul des variations / },
	editor = {Imp. Scientifique Bussiére)},
	publisher = {A. Hermann et Fils, },
	year = {1910 (},
	series = {Cours du College de France},
	address = {Paris : }
}