@techreport{DMC04NASA, author = "G. Dowek and C. Mu{\~n}oz and V. Carre{\~n}o", title = "Abstract Model of the {SATS} Concept of Operations: Initial Results and Recommendations", number = "NASA/TM-2004-213006", institution = "NASA Langley Research Center", address = "NASA LaRC, Hampton VA 23681-2199, USA", month= "March", year = "2004" }