2024-04-102024-04-102012https://otos.stat.fi/handle/123456789/21705enCC BY 4.0vocational educationspecial supportspecial educationeducationstudentspupilscomprehensive schoolintensified supportSpecial education 2011Erityisopetus 2011Specialundervisning 2011URN:NBN:fi-fe20230917129257fulltext