'available'. It is listed, but they do not sell it to everybody: "Due to copyright restrictions, the Kindle title you're trying to purchase is not available in your country: Netherlands"

(amazon.nl links through to amazon.co.uk)

Amazon.de also does not sell it to everybody: "Aufgrund urheberrechtlicher Bestimmungen ist der Kindle-Titel, den Sie kaufen möchten, in Ihrem Land nicht verfügbar: Niederlande"