Savkina M. The condition for the coincidence of LS and Aitken estimations of both parameters of the linear regression model in the case of tridiagonal bisymmetric covariance matrix. JNAM [Internet]. 2025 Dec. 25 [cited 2026 Oct. 6];(2):49-58. Available from: https://jnam.knu.ua/index.php/jnam/article/view/202