Resolution No.7 (1969): Conjugate stations
The IAGA, considering the scientific value of the experiments conducted at the conjugate stations of Kerguelen and Sogra for the study of dynamics and the structure of the magnetosphere and the need to reach a more precise definition of the conjugacy, recommends that two additional pairs of conjugate stations be put in operation at the following locations: Crozet and Pskov, Heard and Dologoschelie.