S. Hughes

Satellite orbits perturbed by direct solar radiation pressure: General expansion of the disturbing function

S. Hughes, 1977 .

Earth satellite orbits with resonant lunisolar perturbations - II. Some resonances dependent on the semi-major axis, eccentricity and inclination

S. Hughes, S. Hughes, 1981, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

Earth satellite orbits with resonant lunisolar perturbations I. Resonances dependent only on inclination

S. Hughes, S. Hughes, 1980, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

The ‘critical inclination’: Another look

S. Hughes, 1981 .

A5_5 Comparing Energy of Free-fall in a Schwarzschild Space-time to Special Relativity

Kieran Crutcher, Sunil Taper, S. Hughes, 2019 .