riffle
shallow landform in a flowing channel
Commonsi kategooria
Rapids
Viited
- ↑ 25. jaanuar 2022, 26. jaanuar 2022, https://web.archive.org/web/20220125070108/https://docs.openalex.org/download-snapshot/snapshot-data-format, OpenAlex, https://docs.openalex.org/download-snapshot/snapshot-data-format
- ↑ Quora
- ↑ Freebase Data Dumps, 28. oktoober 2013
- ↑ Environment Ontology