Modern questions of celestial mechanics

C. Agostinelli: Sul problema delle aurore boreali e il moto di un corpuscolo elettrizzato in presenza di un dipolo magnetico.- G. Colombo: Introduction to the theory of earth’s motion about its center of mass.- E. M. Gaposchkin: The motion of the pole and the earth’s elasticity as studied from the gravity field of the earth by means of artificial earth satellites.- I. I. Shapiro: Radar astronomy, general relativity, and celestial mechanics.- V. Szebehely: Applications of the restricted problem of three bodies in space research.- G. A. Wilkins: The analysis of the observation of the satellites of Mars.