Mohan Raja, Marimuthu, et al. “An Analysis on the Approximate Controllability Results for Caputo Fractional Hemivariational Inequalities of Order 1 < R < 2 Using Sectorial Operators”. Nonlinear Analysis: Modelling and Control, vol. 28, no. 6, Oct. 2023, pp. 1037-61, https://doi.org/10.15388/namc.2023.28.33429.