Similar Items

• The different indices of solar activity and the time of rise
  by: Ξανθάκης, Ιωάννης Ν. (1904- )
  Published: (1967)
• The probable mena values f the different indices of solar activity during the sunspot cycle No 20 1964-1975
  by: Ξανθάκης, Ιωάννης Ν. (1904- )
  Published: (1967)
• The probable mean values of the different indices of solar activity during the sunsrot cycle No.20 1964-1975
  by: Ξανθάκης, Ιωάννης Ν. (1904- )
  Published: (1967)
• On a relation between the indices of solar activity in the photosphere and the corona
  by: Ξανθάκης, Ιωάννης Ν. (1904- )
  Published: (1970)
• Solar activity and precipitation
  by: Ξανθάκης, Ιωάννης Ν. (1904- )
  Published: (1973)