D66 (1992) D66 International Quarterly, jrg. 1. [Journal volume]
D66 (1993) D66 International Quarterly, jrg. 2. [Journal volume]
D66 (1994) D66 International Quarterly, jrg. 3. [Journal volume]
D66 (1995) D66 International Quarterly, jrg. 4. [Journal volume]
D66 (1996) D66 International Quarterly, jrg. 5. [Journal volume]