The ellipso[TM] system: Elliptical low orbits for mobile communications
Feasibility study of a personal communications system IRIDIUM-like
A proposed ground segment design for small satellites
OREMUS : Prototype de centre d'orbitographie pour le controle de minisatellites
Small satellite constellation system: optimization criteria
Titus - A microsatellite for technology demonstration
Ground segment definition for the Spanish small satellite program (MINISAT)
Strategy for a Small Satellite Program and a Proposal for a First Mission
Alexis and Hete: Two small, low cost, scientific satellite systems
The space technology research vehicle: development status