Helena Johanna Maria Janssen
type: Person
alternate name: Janssen, H.J.M.
birth date: 1955
family name: Janssen
given name: Helena Johanna Maria
main entity of page: https://data.bibliotheken.nl/.well-known/genid/06878e41d8d5fc184ea3ca2335b01940
label: Janssen, Helena Johanna Maria (1955-)