1.
Dzуadуk VK. On one method to construct normal in A. N. Tikhonov’s sense of linear equations. Ukr. Mat. Zhurn. [Internet]. 1971 Feb. 23 [cited 2025 Apr. 7];23(2):235-9. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/8506