Controllability of Volterra–Fredholm type systems in Banach spaces

We show the results in Chalishajar [Controllability of mixed Volterra–Fredholm-type integro-differential systems in Banach space, J. Franklin Inst. 344(1) (2007) 12–21] and Chang and Chalishajar [Controllability of mixed Volterra–Fredholm type integro-differential systems in Banach space, J. Franklin Inst., doi:10.1016/j.jfranklin.2008.02.002] are only valid for ordinary differential control systems. As a result the examples provided cannot be recovered as applications of the abstract results.