- Sneeuwwitje". De
Vlaamsche vertelselschat. Deel 2 (in Dutch). Antwerpen: De
Sikkel. pp. 272–279.
Retrieved 23 June 2021. Roelans, J (1924). "XLI. Mauricia"...
-
Daniel (eds.). "Hypsypops rubicundus". FishBase.
November 2005 version.
Sikkel, P. C. (1
September 1989). "Egg
presence and
developmental stage influence...
-
Munich 1942, 528 pages, 272 images, 4
color plates (Flemish
edition at De
Sikkel,
Antwerp 1946). (Information on the book and
download link) Evers, Hans...
-
overzeese gewesten Archived 26 July 2020 at the
Wayback Machine,
Volume 25, De
Sikkel, 1959
Pakenham 1992, pp. 253–5.
Pakenham 1992, pp. 588–9.
Turner 2007, p...
- Keys". EurekAlert!.
Retrieved 2023-07-25. Erasmus, Anja; Hadfield,
Kerry A;
Sikkel, Paul C; Smit, Nico J (2023-07-01). "Morphological
Description and Molecular...
- 169-176 De Meyere,
Victor De
Vlaamsche vertelselschat Deel 2 Antwerpen: De
Sikkel 1927 pp. 139.147 Meder, Theo De
magische Vlucht Amsterdam: Bert
Bakker 2000...
- Netherlands: Antwerp:"De
Sikkel"; Santpoort: C.A. Mees. Vantongerloo,
Georges (1924). Art And Its ****ure. Belgium, Netherlands: Antwerp:"De
Sikkel"; Santpoort: C...
- Paul
Sikkel around 2002 in the U.S.
Virgin Islands. It was the
first new
Caribbean species of
Gnathiidae to be
discovered in over
twenty years.
Sikkel and...
- Bibcode:2010JFBio..76..580L. doi:10.1111/j.1095-8649.2009.02512.x. PMID 20666898.
Sikkel, P.C.; Fuller, C.A. (2010). "Shoaling
preference and
evidence for maintenance...
-
Wayback Machine, CNN "Invuloefening
Feniks Hoofdstuk 1 Van
vuistbijl tot
sikkel – Blik op de Wereld". blikopdewereld.nl.
Archived from the
original on April...