Vlasenko LA, Piven’ AL, Rutkas AG. Criteria for the Well-Posedness of the Cauchy Problem for Differential Operator Equations of Arbitrary Order. Ukr. Mat. Zhurn. [Internet]. 2004Nov.25 [cited 2024May6];56(11):1484-500. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3860