Measuring rice paddy persistence spanning a century with Japan's oldest topographic maps: georeferencing the Rapid Survey Maps for GIS analysis.

D. S. Sprague N. Iwasaki S. Takahashi Measuring rice paddy persistence spanning a century with Japan's oldest topographic maps: georeferencing the Rapid Survey Maps for GIS analysis. 83-95 2007 21 International Journal of Geographical Information Science 1 http://dx.doi.org/10.1080/13658810600816433 db/journals/gis/gis21.html#SpragueIT07