1. [5] Robinson Derek W. , “On positive semigroups” (Mathematics Research Report, 18. Australian National University, Canberra, 1982).
2. Sur la décomposition des fonctionelles en composantes positives;Grosberg;C.R. (Dokl.) Acad. Sci.,1939
3. [4] Robinson Derek W. , “Continuous semigroups on ordered Banach spaces” (Mathematics Research Report, 17. Australian National University, Canberra, 1982).
4. Hereditary cones, order ideals and half-norms;Robinson;Pacific J. Math.