@article{119929,
author = {Milo\v s H\'a\v cik},
title = {Generalization of amplitude phase and accompanying differential equation},
journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
volume = {11},
year = {1971},
pages = {7-17},
zbl = {0261.34006},
mrnumber = {0352583},
language = {en},
url = {http://dml.mathdoc.fr/item/119929}
}
Háčik, Miloš. Generalization of amplitude phase and accompanying differential equation. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 11 (1971) pp. 7-17. http://gdmltest.u-ga.fr/item/119929/
Lineare Differentialtransformationen 2. Ordnung, Berlin 1967. (1967)
O splynutí diferenciálnej rovnice $y'' = q(t)y$ s jej sprievodnou rovnicou, Sborník prací VŠD a VÚD Žilina (to be appeared).
Ľéquation associée dans la théorie des transformations des équations différentielles du second ordre, Acta Univ. Palackianae Olomucensis 1963 TOM 12 pp. 45-62. (1963) | MR 0276527