Krasinsky, G.A.; Novikov, F.A.; Scripnichenko, V.I. "Problem Oriented Language for Ephemeris Astronomy and its Realisation in the System ERAProblem Oriented Language for Ephemeris Astronomy and its Realisation in the System ERA" Celestial Mechonics 45: 219-229,1989.

Languages mentioned

• LAC {1989}
• SLON {1989} Problem oriented language for emphemeris