2024-04-102024-04-102010https://otos.stat.fi/handle/123456789/21703enCC BY 4.0vocational educationspecial supportspecial educationeducationstudentspupilscomprehensive schoolintensified supportSpecial education 2009Erityisopetus 2009Specialundervisning 2009URN:NBN:fi-fe20230917129255fulltext