1. Qin, J., Liu, X.: Frank aggregation operators for triangular interval type-2 fuzzy set and its application in multiple attribute group decision making. J. Appl. Math, 1–24 (2014)
2. Rajarajeswari, P., Dhanalakshmi, P.: Interval-valued intuitionistic fuzzy soft matrix theory. Int. J. Math. Arch. 5(1), 152–161 (2014)
3. Tripathy, B.K., Sooraj, T.R.: On interval valued fuzzy soft sets and their application in group decision making. In: National Conference on Analysis and Applications, in Project Decision Making and Interval Valued Intuitionistic Fuzzy Soft Set, pp. 1–5 (2015)
4. Khalil, M., Zhang, H., Xiong, L., Ma, W.: Corrigendum to on interval-valued hesitant fuzzy soft sets. Math. Prob. Eng. 1–3 (2016)
5. Sudharsan, S., Ezhilmaran, D.: Weighted arithmetic average operator based on interval-valued intuitionistic fuzzy values and their application to multi criteria decision making for investment. J. Inf. Opt. Sci. 37(2), 247–260 (2016)