Land-Cover Observations as Part of a Global Earth Observation System of Systems (GEOSS): Progress, Activities, and Prospects. - Martin Herold 001; Curtis E. Woodcock; Thomas R. Loveland; John R. Townshend; Michael Brady 001; Chris Steenmans; Christiane Schmullius (IEEE Syst. J., 2008)

The Framework for Environmental Software Systems of the European Environment Agency. - Jirí Hrebícek; Stefan Jensen; Chris Steenmans (ISESS, 2015)