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by Costanza; Robert
by Edwards-Jones, Gareth; Davies, Ben; Hussain, Salman S.
by Michael Common , Sigrid Stagl
by Ruth, Matthias
by Matthias Ruth
by Robert Costanza; John H Cumberland; Herman Daly; et al.
by Gareth Edwards-Jones (Univ. of Wales, Bangor); Ben Davies (Univ. of Cambridge); Salman S. Hussain (Scottish Agricultural College, Edinburgh)
by Costanza, Robert; Cumberland, John; Daly, Herman; et al.