: 3.1539http://hdl.handle.net/11245/ Create a prefix for http://hdl.handle.net/11245/ Hit Enter to save Double click to create a prefix | Bierens de Haan, Johannes Diderik, 1866-1943 | : defaulthttps://data.adamlink.nl/Petra/uva-portraits/graphs/ Create a prefix for https://data.adamlink.nl/Petra/uva-portraits/graphs/ Hit Enter to save Double click to create a prefix |