"K. Boumans" . . . . "Boumans, Karel" . "Boumans, K. (1931-2003)" . . "1931"^^ . "K." . "illustrator"@nl . _:B54468c3a41dc17161a0fe39d64e2ecd9 . "Boumans" . "2003"^^ . _:B54468c3a41dc17161a0fe39d64e2ecd9 . _:B54468c3a41dc17161a0fe39d64e2ecd9 . _:B54468c3a41dc17161a0fe39d64e2ecd9 "2023-05-22"^^ . _:B54468c3a41dc17161a0fe39d64e2ecd9 . _:B54468c3a41dc17161a0fe39d64e2ecd9 . _:B54468c3a41dc17161a0fe39d64e2ecd9 "074732412" . _:B54468c3a41dc17161a0fe39d64e2ecd9 . _:B54468c3a41dc17161a0fe39d64e2ecd9 . _:B54468c3a41dc17161a0fe39d64e2ecd9 .