S. Selvarasu, P. Kalamani and M. Mallika Arjunan 2016. Approximate controllability of nonlocal impulsive fractional neutral stochastic integro-differential equations with state-dependent delay in Hilbert spaces. Malaya Journal of Matematik. 4, 04 (Oct. 2016), 571–598. DOI:https://doi.org/10.26637/mjm404/006.