PROJ (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "PROJ" in English language version.

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books.google.com (Global: 3^rd place; English: 3^rd place)

Kresse, W.; Danko, D.M. (2011). Springer Handbook of Geographic Information. Springer Handbook of Geographic Information. Springer Verlag. p. 948. ISBN 978-3-540-72678-4. Retrieved 5 June 2019. PROJ and CS-Map are coordinate reference system and coordinate transformation libraries. ... The history of PROJ.4 starts in the late 1970s, when Gerald Evenden was involved in the development of map plotting software, at the Atlantic Geology branch of the United States Geological Survey (USGS).

doi.org (Global: 2^nd place; English: 2^nd place)

Evenden, Gerald I.; Botbol, J.M. (1985). User's manual for MAPGEN (UNIX version); a method of transforming digital cartographic data to a map. Open-File Report 85-706. U.S. Geological Survey. p. 140. doi:10.3133/ofr85706.

github.com (Global: 383^rd place; English: 320^th place)

"Release 9.7.1". 1 December 2025. Retrieved 3 December 2025.

metacpan.org (Global: low place; English: low place)

"Geo::Proj4 - metacpan.org". metacpan.org.

osgeo.org (Global: low place; English: low place)

download.osgeo.org

Evenden, Gerald I. (2003-01-01) [1990]. Cartographic Projection Procedures for the UNIX Environment—A User's Manual (PDF). Open-File Report 90-284. U.S. Geological Survey. p. 64. Retrieved 2015-08-14.

trac.osgeo.org

"MetaCRS". trac.osgeo.org.

proj.org (Global: low place; English: low place)

"Language bindings". PROJ 7.0.1 documentation.

r-project.org (Global: 7,871^st place; English: 5,225^th place)

cran.r-project.org

Urbanek, Simon (2 March 2020). "proj4: A simple interface to the PROJ.4 cartographic projectionslibrary".

usgs.gov (Global: 167^th place; English: 198^th place)

pubs.er.usgs.gov

Evenden, Gerald I. (1983). Forward and inverse cartographic projection procedures. Open-File Report 83-625. U.S. Geological Survey. p. 76. Retrieved 2015-08-14.