J. Day

A troposcatter propagation experiment at 15.7 GHz over a 500 km path

E. Altshuler, U. Lammers, J. Day, 1968 .

THE OCCURRENCE AND CHARACTERISTICS OF RADAR AURORAL ECHOES AT 488 AND 944 MC/S

B. Blevis, J. Day, O. Roscoe, 1963 .

Observed Characteristics of an Ultra-High-Frequency Signal Traversing an Auroral Disturbance

M. L. Stone, G. Lockwood, J. James, 1960, Nature.