http://wowter.net/2012/02/10/a-census-of-open-access-repositories-in-the-netherlands
Interessante Ergebnisse einer Untersuchung zum Anteil der OA-Eprints am Zeitschriftenartikel-Output der niederländischen Universitäten: Despite having signed the Berlin OA declaration by all Dutch universities, this has resulted only in a few universities with substantial higher shares of OA peer reviewed articles than is to be expected on the basis of a “normal” publication output which results in about 20% articles published in OA.
Und vor allem: Mandates such as those in Rotterdam, announced at the beginning of 2011, have no effect whatsoever if there is no actual stick behind the policy.