On the focal points of solutions of a certain fourth order differential equation Vladimír Vlček (1986) Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica Similarity:
On transformations of bundles of solutions of a fourth order iterated linear differential equation Vladimír Vlček (1980) Sborník prací Přírodovědecké fakulty University Palackého v Olomouci. Matematika Similarity:
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