Savkina, Marta. 2021. “SUFFICIENT CONDITION FOR COINCIDENCE OF THE LS AND AITKEN ESTIMATIONS OF PARAMETER OF QUADRATIC REGRESSION IN CASE HETEROSCEDASTIC DEVIATIONS”. Journal of Numerical and Applied Mathematics, no. 2 (134) (January), 45-58. https://doi.org/10.17721/2706-9699.2020.2.03.