1. Agachanjanz, O.E. & Breckle S.-W. 1994: Umweltsituation in der ehemaligen Sowjetunion. Naturwiss. Rundschau 47: 99–106.
2. Breckle, S.-W. 1971: Vegetation in alpine regions of Afghanistan. In: Davis, P.H. et al. (eds.): Plant Life of South-West Asia. Proceed. of the Symposium 1970. Edinburgh: 107–116.
3. Breckle, S.-W. 1973: Mikroklimatische Messungen und ökologische Beobachtungen in der alpinen Stufe des afghanischen Hindukusch. Bot. Jahrb. System. 93: 25–55.
4. Breckle, S.-W. 1974: Notes on alpine and nival flora of the Hindu Kush, East Afghanistan. Bot. Notiser (Lund) 127: 278–284.
5. Breckle, S.-W. 1983: Temperate Deserts and Semideserts of Afghanistan and Iran. In West, N.E. (ed.): Temperate Deserts and Semideserts. Ecosystems of the World (ed.: Goodall, D. W.), Elsevier, Amsterdam 5: 271–319.