сравнительный признак . Matemaatika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mat/%D1%81%D1%80%D0%B0%D0%B2%D0%BD%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9%20%D0%BF%D1%80%D0%B8%D0%B7%D0%BD%D0%B0%D0%BA/1/rus (21.06.2026)