http://www.biodiversitylibrary.org/
Bulletins de l'Académie royale des sciences, des lettres et
des beaux-arts de Belgique.
Bruxelles.
http://www.biodiversitylibrary.org/bibliography/5550
ser.2:t.21 (1866):
http://www.biodiversitylibrary.org/item/109764 Article/Chapter Title: Sur les silex ouvrés de SpienneAuthor(s): Malaise, Constantin
Subject(s): Paléontologie, Silex ouvrés, Spienne
Page(s): Page 153, Page 154, Page 155, Page 156, Page 157, Page 158, Page 159, Page 160, Page 161, Page 162, Page 163
Contributed by: Missouri Botanical Garden, Peter H. Raven Library Sponsored by: Missouri Botanical Garden
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