Purple fluorite, paper, and a German "Portrait of a Nobleman" von Barclay, Marion H., Dolphin, Erika, Corbeil, Marie-Claude 1960-

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De la fluorine violette et du papier dans un portrait allemand d'un gentilhomme von Barclay, Marion H., Dolphin, Erika, Corbeil, Marie-Claude 1960-

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A note on a modern lead white, also known as 'synthetic plumbonacrite' von Corbeil, Marie-Claude 1960-, Sirois, Jane

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