@article {eifermann_les_1990,
	title = {Les jeux d{\textquoteright}enfants: observation et exp{\'e}rience},
	journal = {La Psychiatrie de l{\textquoteright}enfant},
	volume = {33},
	number = {2},
	year = {1990},
	pages = {457},
	author = {Eifermann, Rivka R.}
}
