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Bulletin / Association belge de…
1886, book, RP-F-2001-7-1351C
Bulletin de la Société des sciences…
1893, book, RP-F-2001-7-1373B
Bulletin / Association belge de…
1888, book, RP-F-2001-7-1351E
1886, book, RP-F-2001-7-1351C
1893, book, RP-F-2001-7-1373B
1888, book, RP-F-2001-7-1351E