Published in Notes Leyden Mus., in 1900, in volume 21, pages 145-276

Published in Notes from the Leyden Museum, in 1900, in volume 22, pages 70

Published in Notes from the Leyden Museum, in 1900, in volume 22, pages 71-74

Published in Notes from the Leyden Museum, in 1900, in volume 22, pages 75-125

Published in Notes from the Leyden Museum, in 1900, in volume 22, pages 162

Published in Notes from the Leyden Museum, in 1900, in volume 22, pages 193-224

Published in Notes From The Leyden Museum, in 1900, in volume 22, issue 1/2, pages 1-24

Published in Notes From The Leyden Museum, in 1900, in volume 22, issue 1/2, pages 25-26

Published in Notes From The Leyden Museum, in 1900, in volume 22, issue 1/2, pages 27-32

Published in Notes From The Leyden Museum, in 1900, in volume 22, issue 1/2, pages 44-48

Published in Notes From The Leyden Museum, in 1900, in volume 22, issue 1/2, pages 49-69

Published in Notes From The Leyden Museum, in 1900, in volume 22, issue 1/2, pages 126-128