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Câmara, G., Souza, R. C. M., Freitas, U. M., & Garrido, J. (1996). Spring: Integrating remote sensing and gis by object-oriented data modelling. Computers &Amp; Graphics, 20(3), 395-403. https://doi.org/10.1016/0097-8493(96)00008-8
Câmara G, Souza RCM, Freitas UM, Garrido J. Spring: Integrating remote sensing and gis by object-oriented data modelling. Computers & Graphics. 1996;20(3):395-403.