@ -221,3 +221,10 @@
url={https://postgis.net/docs/reference.html},
urldate={2021-05-12},
}
@online{wmsql,
author={Motiejus Jakštys},
title={Wang--M{\"u}ller implementation in PostGIS},
url={https://github.com/motiejus/wm},
urldate={2021-05-19},
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