[1] J. Aczél:
Lectures on Functional Equations and their Applications. Academic Press, New York and London, 1966.
MR 0208210
[2] O. Borůvka:
Linear Differential Transformations of the Second Order. The English Univ. Press, London, 1971.
MR 0463539
[3] Z. Hustý:
Die Iteration homogener linearer Differentialgleichungen. Publ. Fac. Sci. Univ. J. E. Purkyně (Brno) 449 (1964), 23-56.
MR 0196166
[4] J. Kurzweil:
Ordinary Differential Equations in the Real Domain. SNTL Praha & Elsevier, Amsterdam, 1986.
MR 0929466 |
Zbl 0667.34002
[5] Ch Maxwell:
Coincidences of mappings. Global Analysis-Analysis on Manifolds, edited by T. M. Rassias, Teubner-Texte zur Mathematik, Leipzig 1983.
MR 0730597 |
Zbl 0527.55008
[6] F. Neuman:
Categorial approach to global transformations of the n-th order linear differential equations. Čas. pěst. mat. 102 (1977), 350-355.
MR 0477284 |
Zbl 0374.34028
[7] F. Neuman:
Criterion of global equivalence of linear differential equations. Proc. Roy. Soc. Edinburgh 97A (1984), 217-221.
MR 0751194 |
Zbl 0552.34009