[1] Siray, G.U., Toker, S. and, Kaçiranlar, S. (2015) On the Restricted Liu Estimator in Logistic Regression Model. Communications in Statistics—Simulation and Computation, 44, 217-232. http://dx.doi.org/10.1080/03610918.2013.771742
[2] Hosmer, D.W. and Lemeshow, S. (1989) Applied Logistic Regression. Wiley, New York.
[3] Ryan, T.P. (1997) Modern Regression Methods. Wiley, New York.
[4] Schaefer, R.L., Roi, L.D. and Wolfe, R.A. (1984) A Ridge Logistic Estimator. Communications in Statistics—Theory and Methods, 13, 99-113. http://dx.doi.org/10.1080/03610928408828664
[5] Aguilera, A.M., Escabias, M. and Valderrama, M.J. (2006) Using Principal Components for Estimating Logistic Regression with High-Dimensional Multicollinear Data. Computational Statistics & Data Analysis, 50, 1905-1924. http://dx.doi.org/10.1016/j.csda.2005.03.011
[6] Nja, M.E., Ogoke, U.P. and Nduka, E.C. (2013) The Logistic Regression Model with a Modified Weight Function. Journal of Statistical and Econometric Method, 2, 161-171.
[7] Mansson, G., Kibria, B.M.G. and Shukur, G. (2012) On Liu Estimators for the Logit Regression Model. The Royal Institute of Techonology, Centre of Excellence for Science and Innovation Studies (CESIS), Paper No. 259. http://dx.doi.org/10.1016/j.econmod.2011.11.015
[8] Inan, D. and Erdogan, B.E. (2013) Liu-Type Logistic Estimator. Communications in Statistics—Simulation and Computation, 42, 1578-1586. http://dx.doi.org/10.1080/03610918.2012.667480
[9] Duffy, D.E. and Santner, T.J. (1989) On the Small Sample Prosperities of Norm-Restricted Maximum Likelihood Estimators for Logistic Regression Models. Communications in Statistics—Theory and Methods, 18, 959-980. http://dx.doi.org/10.1080/03610928908829944
[10] Theil, H. and Goldberger, A.S. (1961) On Pure and Mixed Estimation in ECONOMICS. International Economic Review, 2, 65-77. http://dx.doi.org/10.2307/2525589
[11] Liu, K. (1993) A New Class of Biased Estimate in Linear Regression. Communications in Statistics—Theory and Methods, 22, 393-402. http://dx.doi.org/10.1080/03610929308831027
[12] Urgan, N.N. and Tez, M. (2008) Liu Estimator in Logistic Regression When the Data Are Collinear. International Conference on Continuous Optimization and Knowledge-Based Technologies, Linthuania, Selected Papers, Vilnius, 323-327.
[13] McDonald, G.C. and Galarneau, D.I. (1975) A Monte Carlo Evaluation of Some Ridge-Type Estimators. Journal of the American Statistical Association, 70, 407-416. http://dx.doi.org/10.1080/01621459.1975.10479882
[14] Rao, C.R. and Toutenburg, H. (1995) Linear Models: Least Squares and Alternatives. 2nd Edition, Springer-Verlag, New York, Inc.
[15] Rao, C.R., Toutenburg, H., Shalabh and Heumann, C. (2008) Linear Models and Generalizations. Springer, Berlin.