Published in Notes From The Leyden Museum, in 1909, in volume 30, pages 225-244

Published in Notes From The Leyden Museum, in 1909, in volume 30, issue 4, pages 219-224

Published in Notes From The Leyden Museum, in 1909, in volume 30, issue 4, pages 245-247

Published in Notes From The Leyden Museum, in 1909, in volume 30, issue 4, pages 248

Published in Notes From The Leyden Museum, in 1909, in volume 30, issue 4, pages 249-264

Published in Notes Leyden Museum, in 1909, in volume 31, pages 1-100

Published in Notes From The Leyden Museum, in 1909, in volume 31, pages 101-124

Published in Notes From The Leyden Museum, in 1909, in volume 31, pages 125-142

Published in Notes From The Leyden Museum, in 1909, in volume 31, pages 181-185

Published in Notes From The Leyden Museum, in 1909, in volume 31, pages 191-194

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 143-169

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 170

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 186-188

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 201-206

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 207-210

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 211-220

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 221-253

Published in Notes From The Leyden Museum, in 1909, in volume 31, issue 1, pages 254-256