%0 Journal Article
%@ 1946-7087
%A Sigmund, K.
%A Nowak, M.A.
%A May, R.M.
%D 1995
%F iiasa:4323
%I NPG
%J Scientific American
%P 50-55
%T The arithmetics of mutual help
%U https://pure.iiasa.ac.at/id/eprint/4323/