found: His The web between the worlds, c1979:t.p. (Charles Sheffield) p. iv (pres., Amer. Astronautical Assn. & V/P Earth Satellite Corp.)
found: Everett, J. R. Contribution of Landsat-4 thematic mapper data to geologic exploration, 1983:t.p. (Charles A. Sheffield, Earth Satellite Corp.)
found: His Summertide, 1990:CIP t.p. (Charles Sheffield) data sheet (b. 6/25/35)
found: The world of 2044, c1994:p. 380 (chief scientist and board member of Earth Satellite Corporation; author of scientific nonfiction as well as 80 short stories and 14 novels)
found: Locus Online, Nov. 3, 2002:obit (Charles Sheffield, 67, former President of SFWA, died of brain cancer on November 2, 2002)
found: Internet speculative fiction database 3 June 2015(Charles Sheffield; legal name: Charles A. Sheffield; born in Hull, Yorkshire, England; born 25 June 1935; dies 2 November 2002)
