1. Asadian, N., Fakoor, V., Bozorgnia, A.: Rosenthal’s type inequalities for negatively orthant dependent random variables. J. Iranian Stat. Soc. 5(1–2), 66–75 (2006)
2. Chen, X.R., Zhao, L.C.: Strong consistency of $$M$$ M -estimates of multiple regression coefficients. Syst. Sci. Math. 8, 82–87 (1995)
3. Chen, X.R., Zhao, L.C.: $$M$$ M -methods in Linear Model. Scientific and Technical Publishers, Shanghai (1996)
4. Collins, J.R., Szatmari, V.D.: Maximal asymptotic siases of $$M$$ M estimators of location with preliminary scale estimates. Commun. Stat.-Theory Methods 33(8), 1866–1877 (2004)
5. Djalil, C., Didier, C.: On the strong consistency of asymptotic $$M$$ M Estimators. J. Stat. Plann. Infer. 137, 2774–2783 (2007)