Published in Notes from the Leyden Museum, in 1904, in volume 24, pages 174-176

Published in Notes Leyden Mus., in 1904, in volume 24, pages 177-178

Published in Notes van de Leyden Museum, in 1904, in volume 24, pages 179-202

Published in Notes from the Leyden Museum, in 1904, in volume 24, pages 216-222

Published in Notes From The Leyden Museum, in 1904, in volume 24, pages 232-235

Published in Notes From The Leyden Museum, in 1904, in volume 24, issue 4, pages 167-168

Published in Notes From The Leyden Museum, in 1904, in volume 24, issue 4, pages 169-173

Published in Notes From The Leyden Museum, in 1904, in volume 24, issue 4, pages 223-231

Published in Notes from the Leyden Museum, in 1904, in volume 25, pages 83-94

Published in Notes from the Leyden Museum, in 1904, in volume 25, pages 103-109

Published in Notes From The Leyden Museum, in 1904, in volume 25, issue 1/2, pages 1-82

Published in Notes From The Leyden Museum, in 1904, in volume 25, issue 1/2, pages 95-98