Lena Tyrén Director Deputy Director Professional Services — Student Centre Telephone: 033-435 4203 Email: lena.tyren@hb.se Room number: A326 Signature: LTY Latest publications Expand Latest publications Langelotz, L, Tyrén, L, Research Circles 2014 Conference paper Tyrén, L, Action Research 2013 Conference paper Tyrén, L, Enabling and constraining development at school 2013 Conference paper