Eric Groessens (1983)
The Belgian Marbles and Their Geological Environment.
International Marble Symposium, vol. ISTANBUL 13-17 JUNE 1983 p. 1 p.
26284, 127, 125, 144, 173, Ht, N, SYNAM, TOURN, SYNDIN, TN, V, F, CARC PIERRE
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