Crowdfunding campaign 'save the Dutch wild plants that are threatened with extinction' launched - Radboud Institute for Biological and Environmental Sciences
Joop (Joep) van Rooijen ✝ 03-01-2020 overlijdensbericht en condoleances - Mensenlinq.nl
Epema brugman Black and White Stock Photos & Images - Alamy
Martin van Rooijen - Wikipedia
Daylight (2013) - IMDb
Midden in de Winternacht by Joop Stokkermans on Amazon Music - Amazon.com
Peter D Van Rooyen Obituary - Visitation & Funeral Information
AOV Bingo Card
What's Happening: September 2020 - Part II
Joop van Rooijen ✝ 08-02-2019 overlijdensbericht en condoleances - Mensenlinq.nl
AOV Bingo Card
Botanische Meesterwerken by Weeda, Eddy J., Schaminee, Joop H. J., Rooijen, Nils van - Amazon.ae
Jerry Van Rooijen with The Dutch Jazz Orchestra – On The Scene (1994, CD) - Discogs