Published in Notes from the Leyden Museum, in 1902, in volume 23, pages 131-142

Published in Notes from the Leyden Museum, in 1902, in volume 23, pages 147-152

Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 111-112

Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 113-122

Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 123-130

Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 143-146

Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 153-155

Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 156-161

Published in Notes From The Leyden Museum, in 1902, in volume 23, issue 3, pages 162-179

Published in Notes van de Leyden Museum, in 1902, in volume 24, pages 1-166