@article{120088, author = {Vladim\'\i r Vl\v cek}, title = {On transformations of bundles of solutions of a fourth order iterated linear differential equation}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {19}, year = {1980}, pages = {23-38}, zbl = {0483.34031}, mrnumber = {0630366}, language = {en}, url = {http://dml.mathdoc.fr/item/120088} }
Vlček, Vladimír. On transformations of bundles of solutions of a fourth order iterated linear differential equation. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 19 (1980) pp. 23-38. http://gdmltest.u-ga.fr/item/120088/
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