Die Basilika Mariazell, c2002: t.p. ($04ORV) verso t.p. ($04Osterreichischer Restauratorenverband)
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GRIL NACO contribution (n.d.)
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Library of Congress Authorities online (2002-) http://id.loc.gov/authorities/names/nr2004030076
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Österreichischer Restauratorenverband WWW site, viewed October 4, 2018 ($04Osterreichischer Restauratorenverband, $04ORV, founded in 1985 , is an internationally recognized association of Austrian conservators; 1011 Wien, Postfach 576) | | |