Geomagnetic indices K and C, 1958
Bartels, J.
Geomagnetic indices K and C, 1958 J. Bartels, A.Romana and J. Veldkamp - Amsterdam North-Holland 1962 - 113p.
Geomagnetic Indices
083.550.38 / IAGA-12M1
Geomagnetic indices K and C, 1958 J. Bartels, A.Romana and J. Veldkamp - Amsterdam North-Holland 1962 - 113p.
Geomagnetic Indices
083.550.38 / IAGA-12M1