68 citations · 268 across the 12 of their papers we have counts for
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Victor d'Avila, Eugenio Reis Neto, Alissandro Coletti +6
The heliometer of Fraunhofer in Koenigsberg (1824) is a refractor in which the lens is split into two halves to which is applied a linear displacement along the cut. Later in 1890s…