1. A. Alexiewicz, Linear functionals on Denjoy integrable functions, Coll. Math. 1(1948) 289–293
2. V. G. Chelidze and A. G. Dzhvarsheishvili, Theory of the Denjoy integral and some of its applications (Russian), Tbilisi, 1978.
3. T.S. Chew, Nonlinear Henstock integrals and representation theorems, SEA Bull. Math. 12(1988), 97–108.
4. M. A. Kransnosel'skii, Topological methods in the theory of nonlinear integral equations (translation), Pergamon Press, New York, 1964.
5. P. Y. Lee and T. S. Chew, A short proof of the controlled convergence theorem for Henstock integrals, Bull. London Math. Soc. 19(1987) 60–62.