# Information on the author

Robert Hakl

- Periodic-type solutions for differential equations with positively homogeneous functionals
- R. Hakl, E. P. Trofimchuk, and S. I. Trofimchuk
- Volume 25, No.1, pp. 119-132
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- On a periodic type boundary-value problem for first order linear functional differential equations
- R. Hakl, A. Lomtatidze, and J. Šremr
- Volume 5, No.3, pp. 416-433
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- On an antiperiodic type boundary-value problem for first order nonlinear functional differential equations of non-Volterra's type
- R. Hakl, A. Lomtatidze, and J. Šremr
- Volume 6, No.4, pp. 550-573
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- On the Cauchy problem for two-dimensional systems of linear functional differential equations with monotone operator
- J. Šremr and R. Hakl
- Volume 10, No.4, pp. 560-573
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