| http://www.w3.org/ns/prov#value | - einheim, New York, 1998, pages 80 ff., in the patents U.S. Pat. No. 4,710,542 A, and EP 0 245 700 A1, and in the article by B. Singh and coworkers, ???Carbamylmethylated Melamines, Novel Crosslinkers for the Coatings Industry???, in Advanced Organic Coatings Science and Technology Series, 1991, Volume 13, pages 193 to 207; carboxyl-containing compounds or resins, as described for example in the pa
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