2024-04-102024-04-102021https://otos.stat.fi/handle/123456789/21714enCC BY 4.0vocational educationspecial supportspecial educationeducationstudentspupilscomprehensive schoolintensified supportSpecial education 2020Erityisopetus 2020Specialundervisning 2020URN:NBN:fi-fe20230917129266fulltext