2024-04-102024-04-102020https://otos.stat.fi/handle/123456789/21713enCC BY 4.0vocational educationspecial supportspecial educationeducationstudentspupilscomprehensive schoolintensified supportSpecial education 2019Erityisopetus 2019Specialundervisning 2019URN:NBN:fi-fe20230917129265fulltext