scientific article published in 2000

article by Walentina H De Weerdt published 1985 in Beaufortia

article by Walentina H De Weerdt published 1986 in Beaufortia

scholarly article by W H De Weerdt & R W M Van Soest published 2001 in Zoologische Verhandelingen

scientific article published in 1999

article by W H De Weerdt & R W M Van Soest published 1986 in Zoologische Verhandelingen

scientific article published in 1984