Team S. Explicit Eigen vectors Formulae for Lower Doubly Companion Matrices: Wiwat Wanicharpichat. Thai J Math [Internet]. 2013 Aug. 1 [cited 2024 Dec. 22];11(2):261-74. Available from: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/374