TY - JOUR A1 - Ptitsyna, N. A1 - Altamore, A. T1 - Father Secchi and the first Italian magnetic observatory JO - Hist. Geo Space. Sci. J1 - HGSS VL - 3 IS - 1 SP - 33 EP - 45 Y1 - 2012/02/28 PB - Copernicus Publications SN - 2190-5029 UR - https://hgss.copernicus.org/articles/3/33/2012/ L1 - https://hgss.copernicus.org/articles/3/33/2012/hgss-3-33-2012.pdf DO - 10.5194/hgss-3-33-2012 ER -