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  1. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 13
    Date: 1891
    Page Range: 145--146
    Publication Info: Leyden, E.J. Brill, 1880-1914
  2. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 14
    Date: 1892
    Page Range: 136--138
    Publication Info: Leyden, E.J. Brill, 1880-1914
  3. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 15
    Date: 1893
    Page Range: 129--130
    Publication Info: Leyden, E.J. Brill, 1880-1914
  4. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 12
    Date: 1890
    Page Range: 238--240
    Publication Info: Leyden, E.J. Brill, 1880-1914
  5. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 14
    Date: 1892
    Page Range: 49--53
    Publication Info: Leyden, E.J. Brill, 1880-1914
  6. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 13
    Date: 1891
    Page Range: 115--120
    Publication Info: Leyden, E.J. Brill, 1880-1914
  7. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 15
    Date: 1893
    Page Range: 244--245
    Publication Info: Leyden, E.J. Brill, 1880-1914
  8. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 2
    Date: 1880
    Page Range: 203--205
    Publication Info: Leyden, E.J. Brill, 1880-1914
  9. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 2
    Date: 1880
    Page Range: 237--239
    Publication Info: Leyden, E.J. Brill, 1880-1914
  10. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 2
    Date: 1880
    Page Range: 235--236
    Publication Info: Leyden, E.J. Brill, 1880-1914
  11. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 2
    Date: 1880
    Page Range: 207--208
    Publication Info: Leyden, E.J. Brill, 1880-1914
  12. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 14
    Date: 1892
    Page Range: 207--212
    Publication Info: Leyden, E.J. Brill, 1880-1914
  13. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 13
    Date: 1891
    Page Range: 167--175
    Publication Info: Leyden, E.J. Brill, 1880-1914
  14. By: Roelofs, W
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 10
    Date: 1867
    Page Range: 31--32
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  15. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 3
    Date: 1881
    Page Range: 161--162
    Publication Info: Leyden, E.J. Brill, 1880-1914
  16. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 15
    Date: 1893
    Page Range: 246--247
    Publication Info: Leyden, E.J. Brill, 1880-1914
  17. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 14
    Date: 1892
    Page Range: 33--37
    Publication Info: Leyden, E.J. Brill, 1880-1914
  18. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 14
    Date: 1892
    Page Range: 133--135
    Publication Info: Leyden, E.J. Brill, 1880-1914
  19. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 15
    Date: 1893
    Page Range: 240--243
    Publication Info: Leyden, E.J. Brill, 1880-1914
  20. By: Roelofs, W
    Type: Article
    In: Notes from the Leyden Museum
    Volume: 2
    Date: 1880
    Page Range: 231--234
    Publication Info: Leyden, E.J. Brill, 1880-1914
  21. By: Roelofs, W
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 36
    Date: 1893
    Page Range: 28--40
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,