The electric arc originating from an induced electric field under steady-state conditions. II.

by Giovanelli, R.
[Place of publication not identified] : [publisher not identified], 1966

Plasma in space propulsion. III.

by Giovanelli, R.
[Place of publication not identified] : [publisher not identified], 1967

Plasma in space propulsion.

by Giovanelli, R.
[Place of publication not identified] : [publisher not identified], 1967

Sunspot minima.

by Giovanelli, R G.
[Place of publication not identified] : [publisher not identified], 1966

Methods and techniques for the observation of sunspots in white light.

by Giovanelli, R G.
[Place of publication not identified] : [publisher not identified], 1966

Solar magnetic fields and velocities.

by Giovanelli, R G.
[Place of publication not identified] : [publisher not identified], 1970

Fine structure of the flare of 1968 June 9.

by Giovanelli, R G.
[Place of publication not identified] : [publisher not identified], 1968