@techreport{iiasa4884,
           month = {December},
            type = {IIASA Working Paper},
           title = {A Concept of Complexity for the Social Sciences},
         address = {IIASA, Laxenburg, Austria},
       publisher = {WP-96-144},
            year = {1996},
             url = {https://pure.iiasa.ac.at/id/eprint/4884/},
          author = {Fioretti, G.}
}