Waldo R. Tobler, 1969, Review of Sémiologie graphique: Les Diagrammes – Les réseaux – Les Cartes, Journal of the American Statistical Association, 24(325):391-392. Version bilingue et commentée
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Geography
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Licence : CC BY NC SA - Attribution - NonCommercial - ShareAlike
Licence : CC BY NC SA - Attribution - NonCommercial - ShareAlike