(原始内容存档于2022-11-02). Wikimedia Foundation calls for continued access to free and open knowledge as Ukraine crisis continues. Wikimedia Foundation. 2022-03-01
Arrested in Spain" (页面存档备份,存于互联网档案馆) St. Petersburg Times November 22, 1988 pg. 1A Steven Koff "Scientology leader still jailed in Spain; church charges
Arrested in Spain" (页面存档备份,存于互联网档案馆) St. Petersburg Times November 22, 1988 pg. 1A Steven Koff "Scientology leader still jailed in Spain; church charges
exhibition catalogue Louvre, Édition des Musées Nationaux, Paris 1975, p. 4. Wikimedia Commons graphic (with data) (页面存档备份,存于互联网档案馆). See the doubts in the catalogue