The use of electronographic tubes for spectrophotometric observations /
Mallia, E. A.
University of Oxford.Observatory.
[Oxford : University of Oxford, Department of Astrophysics,
1975]
Reprinted from: Astrophysics and space science, v.35 (1975), pp.L21-L25.
Caption title.
Includes bibliography.
Electronography.
Astrophysics.