Kramer, H. J., 1939- Observation of the earth and its environment : survey of missions and sensors / H. J. Kramer - 2nd ed. - Berlin : Springer-Verlag, 1994 - xxi, 580 p. : ill. ; 24 cm. ISBN: 3540578587 RM319.20 LCCN: 94-014205 Subjects--Topical Terms: Remote sensing--Equipment and supplies