контрольная группа . EKI Combined Dictionary 2026. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif/dlall/eki/%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F%20%D0%B3%D1%80%D1%83%D0%BF%D0%BF%D0%B0/1/rus (21.06.2026)
Translations
контрольная группа . Haridussõnastik. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//har/%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F%20%D0%B3%D1%80%D1%83%D0%BF%D0%BF%D0%B0/1/rus (21.06.2026)
контрольная группа . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kool_KV/%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F%20%D0%B3%D1%80%D1%83%D0%BF%D0%BF%D0%B0/1/rus (21.06.2026)
