Three symmetric positive solutions for a second-order boundary value problem. - Richard Avery; Johnny Henderson (Appl. Math. Lett., 2000)

Four functionals fixed point theorem. - Richard Avery; Johnny Henderson; Donal O'Regan (Math. Comput. Model., 2008)

Iteration with Bisection to Approximate the Solution of a Boundary Value Problem. - Richard Avery; Douglas R. Anderson; Jeffrey Lyons (Axioms, 2024)