https://www.proz.com/personal-glossaries/entry/37288246-effectivit%C3%A9s-%CE%B1%CF%81%CF%87%CE%AE-%CF%84%CE%B7%CF%82-effectivit%C3%A9s-%CE%B1%CF%80%CE%BF%CF%84%CE%B5%CE%BB%CE%B5%CF%83%CE%BC%CE%B1%CF%84%CE%B9%CE%BA%CE%AE-%CE%AC%CF%83%CE%BA%CE%B7%CF%83%CE%B7-%CE%BA%CF%85%CF%81%CE%B9%CE%B1%CF%81%CF%87%CE%AF%CE%B1%CF%82