Published in Notes from the Leyden Museum, in 1907, in volume 29, pages 127-145

Published in Notes from the Leyden Museum, in 1907, in volume 29, pages 63-64

Published in Notes from the Leyden Museum, in 1907, in volume 28, pages 146-148

Published in Notes from the Leyden Museum, in 1907, in volume 28, pages 149-152

Published in Notes from the Leyden Museum, in 1907, in volume 28, pages 158-160

Published in Notes from the Leyden Museum, in 1907, in volume 28, pages 224-226

Published in Notes from the Leyden Museum, in 1907, in volume 28, pages 227-264

Published in Notes from the Leyden Museum, in 1907, in volume 29, pages 54-56

Published in Notes Leyden Museum, in 1907, in volume 28, pages 221-223

Published in Notes From The Leyden Museum, in 1907, in volume 29, pages 107-126

Published in Notes from the Leyden Museum, in 1907, in volume 29, issue 2, pages 127-146

Published in Notes Leyden Museum, in 1907, in volume 28, pages 218-220

Published in Notes From The Leyden Museum, in 1907, in volume 29, pages 1-53

Published in Notes From The Leyden Museum, in 1907, in volume 29, pages 57-62

Published in Notes Leyden Museum, in 1907, in volume 29, pages 81-87

Published in Notes Leyden Museum, in 1907, in volume 29, pages 101-105

Published in Notes Leyden Museum, in 1907, in volume 29, pages 88-100

Published in Notes From The Leyden Museum, in 1907, in volume 29, issue 1, pages 65-67

Published in Notes From The Leyden Museum, in 1907, in volume 29, issue 1, pages 68-70

Published in Notes From The Leyden Museum, in 1907, in volume 29, issue 1, pages 71-76

Published in Notes From The Leyden Museum, in 1907, in volume 29, issue 1, pages 77-78

Published in Notes From The Leyden Museum, in 1907, in volume 28, issue 3/4, pages 153-157

Published in Notes From The Leyden Museum, in 1907, in volume 28, issue 3/4, pages 213-217

Published in Notes from the Leyden Museum, in 1907, in volume 28, pages 161-212