[Funkhouser H.G. 1937, Historical development of the graphical presentation of statistical data. “Osiris” Vol. 3, pp. 269–404.10.1086/368480]Open DOISearch in Google Scholar
[Jenks G.F., Coulson M.R.C. 1963, Class intervals for statistical maps. “International Yearbook of Cartography” Vol. 3, pp. 119–134.]Search in Google Scholar
[Kretschmer I., 1989, Die Entwicklung der Methodenlehre der thematischen Kartographie bis in die 1960er Jahre. “Berichte und Informationen” Nr 12. Österreichische Akademie der Wissenschaften Institut für Kartographie, pp. 1–55.]Search in Google Scholar
[Palsky G., 1999, The debate on the standardization of statistical maps and diagrams (1857–1901). Elements of the history of graphical language. “Cybergeo. European Journal of Geography” (source: http://journals.openedition.org/cybergeo/148).10.4000/cybergeo.148]Search in Google Scholar
[Palsky G., 2008, Connection and exchange in European thematic cartography. The case of 19-th century choropleth maps. “Belgeo”, No. 3/4, pp. 413–426.10.4000/belgeo.11893]Search in Google Scholar
[Robinson A.H., 1971, Genealogy of isopleth. “The Cartographic Journal” Vol. 8, No. 1, pp. 49–53.10.1179/caj.1971.8.1.49]Search in Google Scholar
[Robinson A.H., 1982, Early thematic mapping in the history of cartography. Chicago, London: The University Chicago Press.]Search in Google Scholar
[Scharfe W., 1990, Administrativ-statistischer Atlas vom Preussischen Staate. Erläuterungsband. Publikationen Historischen Kommission zu Berlin, Reihe “Kartenwerk zur Preussischen Geschichte”. „Administrativ-statistischer Atlas Preussischen Staate”, Werk, Verfasser und Urheber, pp. 6–18. Verhältnis der Bevölkerung zur Grundfläche, pp. 133–142. Berlin: Kiepert Verlag.]Search in Google Scholar
