1972

Theses

1. 1. Olsson, S

   (1972) Studies of storm effects on the total electron content and of ionospheric irregularities by means of improved techniques.
2. 1. Svennesson, J

   (1972) Ionospheric D-region effects observed by means of VLF radio waves.
3. 1. Theander, A

   (1972) Studies of auroral absorption substorms.
4. 1. Westerlund, S

   (1972) Abnormal propagation conditions in the terrestrial VLF waveguide.