1. Beck, U. (1986), Risikogesellschaft – Auf dem Weg in eine andere Moderne, Frankfurt a. M.: Klett.
2. Bevoise, W. de. (1984), “Synthesis of research on the principal as instructional leader”, Educational Journal, Vol. 41 No. 5, pp. 14‐20.
3. Edmonds, R. (1979), “Effective schools for the urban poor”, Educational Leadership, Vol. 37 No. 1, 15‐27.
4. The school as a learning organization: Distant dreams
5. The quality of schooling: Frameworks for judgement