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file E (Stack)Cittert, P. H. van
"Some remarks on the development of the compound microscopes in the 19th century"
offprint from The Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, Series B vol. LIV no. 1, 1951. (Communicated on December 23, 1950). [See also van Cittert-Eymers, J. G.].
[Unknown]
1951