@misc{indiciaebb5cdba29c4b, title = {Characterizing user requirements for future land observing satellites}, author = {Barker, J. L. and Cressy, P. J. and Schnetzler, C. C. and Salomonson, V. V.}, year = {1981}, url = {https://ntrs.nasa.gov/citations/19820009688}, note = {Source identifier: 19820009688} }