Costa, C.N. (1998). An investigation into heterogeneity of variance for milk and fat yields of Holstein cows in Brazilian herd environments. Genetics and Molecular Biology. 22(3): 375-381.
Dahlin, A., Khan, U.N., Zafar, A.H., Saleem, M., Chaudhry, M.A. and Philipsson, J. (1998). Genetic and environmental causes of variation in milk production traits of Sahiwal cattle in Pakistan. Journal of Animal Science. 66(2): 307-318.
DeVeer, J.C. and Van Vleck, L.D. (1987). Genetic parameters for first lactation milk yields at three levels of herd production. Journal of Dairy Science. 70:1434.
Dodenhoff, J. and Swalve, H.H. (1998). Heterogeneity of variances across regions of northern Germany and adjustment in genetic evaluation. Livestock Production Science. 53: 225-236.
Dong, M.C. and Mao, I.L. (1990). Heterogeneity of co variance and heritability in different levels of intraherd milk production variance and of herd average. Journal of Dairy Science. 73(3): 843-851.
Gengler, N., Wiggans, G.R. and Gillon, A. (2004). Estimated heterogeneity of phenotypic variance of test-day yield with a structural variance model. Journal of Dairy Science. 87(6): 1908-1916.
Gianola, D. (1986). On selection criteria and estimation of parameters when the variance is heterogeneous. Theoretical and Applied Genetics. 72: 671-677.
Groeneveld, E., Kovac, M. and Mielenz, N. (2008). VCE User’s Guide and Reference Manual. Version 6.0. Institute of Farm Animal Genetics, Neustadt, Germany. 1-125.
Ibanez, M. A., Carabano, M.J., Foulley, L. and Alenda, R. (1996). Heterogeneity of herd-period phenotypic variances in the Spanish HolsteinFriesian cattle: sources of heterogeneity and genetic evaluation. Livestock Production Science. 45: 137-147.
Ibanez, M.A., Carabano, M.J. and Alenda, R. (1999). Identiﬁcation of sources of heterogeneous residual and genetic variances in milk yield data from the Spanish Holstein-Friesian population and impact on genetic evaluation. Livestock Production Science. 59(1): 33-49.
Ibanez-Escriche, N., Varona, L., Sorensen, D. and Noguera, J.L. (2008a). A study of heterogeneity of environmental variance for slaughter weight in pigs. Animal. 2(1): 19-26.
Lidauer, M., Emmerling, R. and Mantysaari, E.A. (2008). Multiplicative random regression model for heterogeneous variance adjustment in genetic evaluation for milk yield in Simmental. Journal of Animal Breeding and Genetic. 125(3): 147-159.
Markus , S., Mantysaari, E.A., Stranden, I., Eriksson, J.A. and Lidauer, M.H. (2014). Comparison of multiplicative heterogeneous variance adjustment models for genetic evaluations. Journal of Animal Breeding and Genetics. 131(3):237-246.
Nikolaou, M., Kominakis, A.P., Rogdakis, E. and Zampitis, S. (2004). Effect of mean and variance heterogeneity on genetic evaluations of Lesbos dairy sheep. Livestock Production Science. 88(1-2): 107-115.
Robert-Granie, C., Bonaıti, B., Boichard, D. and Barbat, A. (1999). Accounting for variance heterogeneity in French dairy cattle genetic evaluation. Livestock Production Science. 60(2-3): 343-357.
Short, T.H., Blake, R.W., Quaas, R.L. and Van VlecK, L.D. (1990). Heterogeneous within-herd variance. 1. Genetic parameters for first and second lactation milk yields of grade Holstein cows. Journal of Dairy Science. 73(11): 3312-3320.
Strabel, T. and Szwaczkowski, T. (1997). Additive genetic and permanent environmental variance components for test day milk traits in Black-White cattle. Livestock Production Science. 48: 91-98.
Strabel, T., Jankowski, T. and Jamrozik, J. (2006). Adjustments for heterogeneous herd-year variances in a random regression model for genetic evaluations of polish Black-and-White cattle. Journal of Applied Genetics. 47(2): 125-130.
Urioste, J.I., Gianola, D., Rekaya, R., Fikse, W.F. and Weigel, K.A. (2001). Evaluation of extent and amount of heterogeneous variance for milk yield in Uruguayan Holsteins. Journal of Animal Science. 72(2): 259-268.
Varkoohi, S., Merabani-Yeganeh, H., Miraei-Ashtiyani, S.R. and Ghavi-Hossein-zadeh, N. (2007). Heterogeneity of variance for milk traits at climitical regions in Holstein dairy cattle in Iran and the best methods for data transformation. Pakistan journal of biological sciences. 10(9):1556-1558.
Visscher, P.M., Thompson, R. and Hill, W.G. (1991). Estimation of genetic and environmental variances for fat yield in individual herds and an investigation into heterogeneity of variance between herds. Livestock Production Science. 28(4): 273-290.