重要

翻译是一项社区工作：ref：你可以加入<translation_guidelines>。此页面目前翻译进度为 100.00%。

27. 文献和网络参考

GDAL-SOFTWARE-SUITE. Geospatial data abstraction library. https://gdal.org/en/latest, 2013.

GRASS-PROJECT. Geographic resource analysis support system. https://grass.osgeo.org, 2013.

NETELER, M., AND MITASOVA, H. Open source gis: A grass gis approach, 2008.

OGR-SOFTWARE-SUITE. Geospatial data abstraction library. https://gdal.org/en/latest, 2013.

OPEN-GEOSPATIAL-CONSORTIUM. Web map service (1.1.1) implementation specification. https://portal.ogc.org/files/?artifact_id=1081&amp;version=1&amp;format=pdf, 2002.

OPEN-GEOSPATIAL-CONSORTIUM. Web map service (1.3.0) implementation specification. https://portal.ogc.org/files/?artifact_id=14416&format=pdf, 2004.

POSTGIS-PROJECT. Spatial support for postgresql. http://www.refractions.net/products/postgis/, 2013.