Duplicate title to
Clapham, W.B., Pestel, R.F., & Arnaszus, H.
(1979).
On the Scenario Approach to Simulation Modeling for Complex Policy Assessment and Design.
IIASA Research Report (Reprint).
IIASA, Laxenburg, Austria: RR-80-003. Reprinted from Policy Sciences, 11 [1979].