In the Vinony graph
Vinony's link graph records 5 inbound references to Efremov, and connects out to Yefremov, list of minor planets: 12001–13000 and Ephraim.
It is catalogued under the topic Place name disambiguation pages.
Vinony links it to 14 Wikipedia language editions.
Available in 14 languages
via Wikidata sitelinks · CC0