TY  - BOOK
AU  - Mayaud, P. N. 
AU  - Romana, A. 
ED  - International Association of Geomagnetism and Aeronomy
TI  - Supplementary geomagnetic data 1957-1975: indices Kn, Ks and Km, 1959-1963 indices aa, 1968-1975 new list of ss's, 1968-1975 yearly diagrams of activity, 1957-1975
PY  - 1977///
CY  - Paris
PB  - International Union of Geodesy and Geophysics 
KW  - Iaga Bulletin No.39Iaga Bulletin-dataIaga IndicesIugg
ER  -