KOVÁCS, Tivadar. A MODERN METHOD HANDLING ONLY REAL QUANTITIES FOR STATE TRANSITION MATRIX DETERMINATION Periodica Polytechnica Electrical Engineering, [S. l.], v. 16, n. 4, p. 347–354, 1972. Disponível em: https://pp.bme.hu/ee/article/view/5054. Acesso em: 19 may. 2024.