@book{do-f-03-sakeuser-1999-01,
	school = {BFS},
	month = {Jan},
	language = {FR},
	title = {ESPA - Enquête suisse sur la population active: Liste des variables et structure du questionnaire de l'ESPA 1999.},
	institution = {Bundesamt für Statistik (BFS)},
	pages = {41},
	number = {291412},
	url = {https://dam-api.bfs.admin.ch/hub/api/dam/assets/291412/master}
}