@book {1156,
	title = {Essai sur la psychologie de l{\textquoteright}invention dans le domaine math{\'e}matique},
	year = {1993},
	publisher = {{\'E}ditions Jacques Gabay},
	organization = {{\'E}ditions Jacques Gabay},
	address = {Paris},
	author = {Hadamard, Jacques}
}
