1] S. Alonso, F. Chiclana, F. Herrera, E. Herrera-Viedma, J. Alcala-Fdez and C. Porcel, A
consistency-based procedure to estimate missing pairwise preference values, Int J. Intell. Syst.,
23(2)(2008), 155{175.
[2] N. Chen, Z. Xu and M. Xia, Interval-valued hesitant preference relations and their applica-
tions to group decision making, Knowledge-Based Syst., 37 (2013), 528{540.
[3] F. Chiclana, E. Herrera-Viedma and J. Wu, Trust based consensus model for social network
in an incomplete linguistic Information context, Appl. Soft Comput., 35 (2013), 827{839.
[4] F. Chiclana, E. Herrera-Viedma, S. Alonso and F. Herrera, Cardinal consistency of reciprocal
preference relations: a characterization of multiplicative transitivity, IEEE Trans Fuzzy Syst.,
17(1) (2009), 14{23.
[5] Y. Dong and E. Herrera-Viedma, Consistency-driven automatic methodology to set inter-
val numerical scales of 2-tuple linguistic term sets and its use in the linguistic GDM with
preference relation, IEEE Trans Fuzzy Cybernetics, 45(4) (2015), 780-792.
[6] E. Herrera-Viedma, S. Alonso, F. Chiclana and F. Herrera, A consensus model for group
decision making with incomplete fuzzy preference relations, IEEE Trans Fuzzy Syst., 15(5)
(2007), 863-877.
[7] E. Herrera-Viedma, F. Chiclana, F. Herrera and S. Alonso, Group decision-making model
with incomplete fuzzy preference relations based on additive consistency, IEEE Trans Fuzzy
Syst., Man, and Cybernetics, Part B (Cybernetics)., 37(1) (2007), 176-189.
[8] A. Khalid and M. M. Awais, Incomplete preference relations: An upper bound condition, J
Intell Fuzzy Syst., 26(3) (2014), 1433-1438.
[9] H. Liao, Z. Xu and M. Xia, Multiplicative consistency of hesitant fuzzy preference relation
and its application in group decision making, Int. J. Inf.Tech. & Decision Making, 13(01)
(2014), 47-76.
[10] H. Liao and Z. Xu, Priorities of intuitionistic fuzzy preference relation based on multiplicative
consistency IEEE Trans. Fuzzy Syst., 22(6) (2014), 1669-1681.
[11] H. Liao, Z. Xu and M. Xia, Multiplicative consistency of interval-valued intuitionistic fuzzy
preference relation, J Intell Fuzzy Syst., 27(6) (2014), 2969-2985.
[12] H. Liu, Z. Xu and H. Liao, The multiplicative consistency index of hesitant fuzzy preference
relation, IEEE Trans Fuzzy Syst., 24(1)(2016), 82-93.
[13] K. Mandal and K. Basu, Simpler solution to group decision making problems based on interval
valued hesitant fuzzy sets and a new approach to fi nd critical path using hesitant fuzzy Int.
J. Pure and Appl. Math., 101(4) (2015), 445-461.
[14] J. A. Morente-Molinera, I. J. Perez, M. R. Ure~na and E. Herrera-Viedma, On multi-granular
fuzzy linguistic modeling in group decision making problems: a systematic review and future
trends, Knowledge-Based Syst., 74 (2015), 49-60.
[15] S. A. Orlovsky, Decision-making with a fuzzy preference relation, Fuzzy Sets Syst., 1(3)
(1978), 155-167.
[16] V. Torra, Hesitant fuzzy sets, Int. J. Intell. Syst., 25(6) (2010), 529-539.
[17] V. Torra,Y. Narukawa, On hesitant fuzzy sets and decision In: IEEE International Conference
on Fuzzy Systems (FUZZ-IEEE) 2009, 1378{1382.
[18] R. Urena, F.Chiclana, J. A. Morente-Molinera and E. Herrera-Viedma, Managing incomplete
preference relations in decision making: a review and future trends Inf. Sci., 302 (2015),
14-32.
[19] J. Q.Wang,J. Wang, Q. H. Chen, H. Y. Zhang and X. H. Chen, An outranking approach for
multi-criteria decision-making with hesitant fuzzy linguistic term sets, Inf. Sci., 280 (2014),
338-351.
[20] Z. J. Wang, A note on Incomplete interval fuzzy preference relations and their applications,
Computers & Industrial Engineering, 77 (2014), 65{69.
[21] G. Wei, X. Zhao and R. Lin, Some hesitant interval-valued fuzzy aggregation operators and
their applications to multiple attribute decision making, Knowledge-Based Syst., 46 (2013),
43{53.
[22] M. Xia and Z. Xu, Hesitant fuzzy information aggregation in decision making, Int. J. Approx.
Reasoning, 52(3) (2011), 395-407.
[23] M. Xia and Z. Xu, Managing hesitant information in GDM problems under fuzzy and multi-
plicative preference relations, International Journal of Uncertainty, Fuzziness and Knowledge-
Based Syst., 21(06) (2013), 865{897.
[24] Y. Xu, L. Chen, K. W.Li and H. Wang, A chi-square method for priority derivation in
group decision making with incomplete reciprocal preference relations, Inf. Sci., 306 (2015),
166{179.
[25] Y. Xu, R. Patnayakuni and H. Wang, Logarithmic least squares method to priority for group
decision making with incomplete fuzzy preference relations, Appl. Math. Modell., 37(4)
(2013), 2139{2152.
[26] Y. Xu, K. W. Li and H. Wang, Incomplete interval fuzzy preference relations and their
applications. Computers & Industrial Engineering, 67 (2014), 93-103.
[27] Y. Xu, L. Chen, R. M Rodrguez, F. Herrera and H. Wang, Deriving the priority weights from
incomplete hesitant fuzzy preference relations in group decision making, Knowledge-Based
Syst., 99 (2016), 71-78.
[28] Z. S. Xu and Q. L.Da, The uncertain OWA operator, Int. J. Intell. Syst., 17(6) (2002),
569{575.
[29] Z. Xu, On compatibility of interval fuzzy preference relations, Fuzzy Optim. Decision Making,
3(3)(2004), 217{225.
[30] Z. Xu and J. Chen, Some models for deriving the priority weights from interval fuzzy pref-
erence relations, Eur J Oper Res., 184(1) (2008), 266{280.
[31] Y. Xu,, J. N. Gupta and H. Wang, The ordinal consistency of an incomplete reciprocal
preference relation, Fuzzy Sets Syst., 246 (2014), 62{77.
[32] Z. Xu and H. Liao, A survey of approaches to decision making with intuitionistic fuzzy
preference relations, Knowledge-based syst., 80 (2015), 131{142.
[33] Y. Xu, F. Ma, F. Tao and H. Wang, Some methods to deal with unacceptable incomplete 2-
tuple fuzzy linguistic preference relations in group decision making, Knowledge-Based Syst.,
56 (2014), 179{190.
[34] B. Zhu, Z. Xu and J. Xu, Deriving a ranking from hesitant fuzzy preference relations under
group decision making, IEEE Trans. Cybernetics, 44(8) (2014), 1328{1337.
[35] G. Zhang, Y. Dong and Y. Xu, Linear optimization modeling of consistency issues in group
decision making based on fuzzy preference relations, Expert Systems with Appl., 39(3)
(2012), 2415{2420.
[36] Y. Zhang, H. Ma, Q. Li, B. Liu and J. Liu, Conditions of two methods for estimating missing
preference information, Inf. Sci., 279 (2014), 186{198.
[37] Z. Zhang and C. Wu, Interval-valued hesitant multiplicative preference relations and their
application to multi-criteria decision making, British J. Math. Comput. Sc., 4(10) (2014),
1390{1426.
)