Costa Lobo (1864-1945), the Coimbra Spectroheliograph and the Internationalisation of Portuguese Astronomy

von Bonifácio, Vitor
Veröffentlicht in History of Astronomy in Portugal / Edited by Fernando B. Figuereido & Colette Le Lay (2017)

Taking internal advantage of external events - two astronomical examples from nineteenth century Portugal

von Bonifácio, Vitor
Veröffentlicht in Centaurus (2009)

˜Anœ early Troughton & Simms transit circle with interior illumination shown at the 1851 Great London Exhibition

von Bonifácio, Vitor
Veröffentlicht in Bulletin of the Scientific Instrument Society (2008)

˜Theœ Troughton & Simms transit circle of Coimbra Astronomical Observatory from the 1850s : an example of the dissemination of technological developments

von Bonifácio, Vitor
Veröffentlicht in Astronomical notes (2009)