With Bob Greenyer reviewing his rough English translation of the work
Here's an interesting article about radio propagation, the ionosphere, and how planetary position appears to bear predictive fruit regarding propagation conditions. Ability to properly predict propagation conditions went from ~80% to ~90% when planetary positions were accounted for. The researcher apparently also wrote a book published in 74, called 'Cosmic ~~Connections~~' (edit: actually called 'Cosmic Patterns'). To me, it would seem that this information would be seriously valuable to the military, and was possibly put under wraps for that reason.
Refer to the article on page 44 - Radio Waves, Sunspots, and Planets (June of 1959 Popular Electronics): https://archive.org/details/Pop195710/Popular%20Electronics/Pop-1959-06/page/n43/mode/2up
From the article:
Charting the Planets.
Amazing as it may seem, Mr. Nelson predicts the condition of the ionosphere, and thus, the radio weather, by charting the positions of the planets. He first began to study radio wave propagation in 1946, at which time he was able to achieve 80% accuracy on 24-hour forecasts by basing predictions on sunspot observation. In spite of the apparent success of the sunspot prediction method, however, he felt that the condition of the ionosphere was determined not only by sunspots, but also by the relative positions of the planets as they circle around the sun.
Later investigation proved this theory to be correct. As a result of studying planetary positions in addition to sunspot activity, Mr. Nelson's forecasts are now 90% accurate for 30-hour periods. His long-range forecasts, covering periods of 36 days, are 80% accurate."