www.subdist.com
Subterranean Music, Amsterdam: A great little independent CD store in the heart of Amsterdam. Here you can buy CD's online like the Wolter Wierbos CD's Wierbos and XCaliber:
Buy CD "Wierbos" online
Buy CD "XCaliber" online

www.doek.org
Stichting dOeK is a non-profit organisation founded by five musicians representing various groups active in the improvised music world.

www.popinstituut.nl
Encycopedia of Dutch popmusic.
Click here for a direct link to Wolter Wierbos.