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Pinty, B.; Verstraete, M. M. (1992). "GEMI: a non-linear index to monitor global vegetation from satellites". Vegetatio. 101 (1). Springer Nature: 15–20. doi:10.1007/bf00031911. ISSN0042-3106. S2CID32216977.
Pinty, B.; Verstraete, M. M. (1992). "GEMI: a non-linear index to monitor global vegetation from satellites". Vegetatio. 101 (1). Springer Nature: 15–20. doi:10.1007/bf00031911. ISSN0042-3106. S2CID32216977.