_:B22ec60acb77298abf46f61bee5d4159d . _:B22ec60acb77298abf46f61bee5d4159d . _:B22ec60acb77298abf46f61bee5d4159d "2023-05-21"^^ . _:B22ec60acb77298abf46f61bee5d4159d . _:B22ec60acb77298abf46f61bee5d4159d . _:B22ec60acb77298abf46f61bee5d4159d "069186642" . _:B22ec60acb77298abf46f61bee5d4159d . _:B22ec60acb77298abf46f61bee5d4159d . _:B22ec60acb77298abf46f61bee5d4159d . . "Ritzen" . "J.M.M." . "Ritzen, Jozef Maria Mathias" . "Ritzen, Jo" . "\"Wie is wie in Nederland 1994-1996\""@nl . . "J.M.M. Ritzen" . "Ritzen, J.M.M. (1945-)" . "1945"^^ . . "Dr. Ir." . . _:B22ec60acb77298abf46f61bee5d4159d .