1. Map Projection
https://en.wikipedia.org/wiki/Map_projection
2. Mapping for a Sustainable World;Kraak,2020
3. Flattening the Earth: Two Thousand Years of Map Projections;Snyder,1993
4. Coup d’oeil historique sur la projection des cartes de géographie: Société de Géographie;d’Avezac;Bulletin,1863
5. GPS for Land Surveyors;Van Sickle,2015