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THE FATHER OF BRITISH OPTICS: ROGER BACON, c. 1214-1294. [PDF]
James RR.
europepmc +1 more source
The Formation of Manuals on Quadrivium : Focusing on Boethius
openaire +1 more source
THE FATHER OF BRITISH OPTICS: ROGER BACON, c. 1214-1294. [PDF]
The Formation of Manuals on Quadrivium : Focusing on Boethius