substratum in czech substratum in german substratum in danish substratum in spanish substratum in french substratum in italian substratum in norwegian substratum in russian substratum in swedish substratum in albanian substratum in bulgarian substratum in belarusian substratum in estonian substratum in finnish substratum in greek substratum in croatian substratum in hungarian substratum in portuguese substratum in romanian substratum in ukrainian substratum in polish substratum in slovak