Forbush decreases: Origin and development in the interplanetary space N. IucciM. ParisiG. Villoresi OriginalPaper Pages: 1 - 52
Spectral analysis of cosmic-ray fluctuations at 250 GV L. BergamascoS. AlessioA. R. Osborne OriginalPaper Pages: 53 - 62
Fixed-focal-axis solar concentrators with a curvature determined by gravity G. A. Rottigni OriginalPaper Pages: 88 - 100
Homogénéité et stabilié des éléments métérologiques à Uccle (Belgique) R. Sneyers OriginalPaper Pages: 101 - 113