LOMTATIDZE, Alexander, Robert HAKL a Bedřich PŮŽA. On the periodic boundary value problem for first-order functional-differential equations. Differnetial Equations. USA: Plenum Publishing Corporation, 2003, roč. 39(2003), č. 3, s. 344-352. ISSN 0012-2661.
LOMTATIDZE, Alexander, Robert HAKL a Bedřich PŮŽA. New optimal conditions for unique solvability of the Cauchy problem for first order linear functional differential equations. Mathematica Bohemica. Praha: Matematický ústav AV ČR, 2002, roč. 127(2002), č. 4, s. 509-524. ISSN 0862-7959.
LOMTATIDZE, Alexander, Robert HAKL a Jiří ŠREMR. On a periodic-type boundary value problem for first order nonlinear functional differential equations. Nonlinear Analysis TMA. Elsevier Science Ltd., 2002, roč. 2002, 51 (3), s. 425-447. ISSN 0362-546X.
DOŠLÁ, Zuzana, M. CECCHI a M. MARINI. On decaying solutions for functional differential equations with p-Laplacian. Nonlinear Analysis. Holandsko: Elsevier Science Ltd., 2001, roč. 47, č. 1, s. 4387-4398. ISSN 0362-546X.