Ulam stability for a delay differential equation D Otrocol, V Ilea Open Mathematics 11 (7), 1296-1303, 2013 | 85 | 2013 |

First order functional-differential equations with both advanced and retarded arguments IA Rus, VA Dârzu-Ilea Fixed Point Theory 5 (1), 103-115, 2004 | 16 | 2004 |

On α-ψ-Contractive Multi-Valued Operators in b-Metric Spaces and Applications MF Bota, V Ilea, E Karapınar, O Mlesnite Appl. Math. Inf. Sci 9 (5), 2611-2620, 2015 | 14 | 2015 |

Existence and Uniqueness of the Solution for an Integral Equation with Supremum, via *w*-DistancesV Ilea, D Otrocol Symmetry 12 (9), 1554, 2020 | 13 | 2020 |

Some properties of solutions of a functional-differential equation of second order with delay V Ana Ilea, D Otrocol The Scientific World Journal 2014, 2014 | 10 | 2014 |

On a DV Ionescu’s problem for functional-differential equations VA Ilea, D Otrocol Fixed Point Theory 10 (1), 125-140, 2009 | 10 | 2009 |

ON THE BURTON METHOD OF PROGRESSIVE CONTRACTIONS FOR VOLTERRA INTEGRAL EQUATIONS. V Ilea, D Otrocol Fixed Point Theory 21 (2), 2020 | 7 | 2020 |

Integro-differential equation with two time lags V Ilea, D Otrocol, MA Serban, D Trif Fixed Point Theory 13 (1), 85-97, 2012 | 7 | 2012 |

Qualitative properties of functional differential equation D Otrocol, V Ilea Electronic Journal of Qualitative Theory of Differential Equations 2014 (47 …, 2014 | 6 | 2014 |

Functional differential equations of first order with advanced and retarded arguments VA Ilea Presa Universitara Clujeana, 2006 | 5 | 2006 |

Applications of fibre contraction principle to some classes of functional integral equations V Ilea, D Otrocol, IA Rus, MA Serban Fixed Point Theory 22, 279-292, 2022 | 4 | 2022 |

An application of the Picard operator technique to functional integral equations VA Ilea, D Otrocol JOURNAL OF NONLINEAR AND CONVEX ANALYSIS 18 (12), 2209-2217, 2017 | 4 | 2017 |

Fixed point theorems for nonself operators in b-metric spaces MF Bota, V Ilea Fixed Point Theory 16 (2), 225-232, 2015 | 4 | 2015 |

An iterative method for a functional-differential equation with mixed type argument D Otrocol, VA Ilea, C Revnic Fixed Point Theory 11 (2), 327-336, 2010 | 4 | 2010 |

Periodic solutions for functional–differential equations of mixed type A Buică, VA Ilea Journal of mathematical analysis and applications 330 (1), 576-583, 2007 | 4 | 2007 |

An existence result of the solution for mixed type functional differential equations with parameter VA Ilea, M Serban Nonlinear Analysis Forum 12 (1), 59, 2007 | 4 | 2007 |

Functional differential equations with maxima, via step by step contraction principle V Ilea, D Otrocol Carpathian Journal of Mathematics 37 (2), 195-202, 2021 | 3 | 2021 |

Integro-differential equation with two times modifications VA Ilea, D Otrocol Carpathian Journal of Mathematics, 209-216, 2011 | 3 | 2011 |

Note on the existence of the solutions for functional differential equations of mixed type VA Ilea STUDIA UNIVERSITATIS BABES-BOLYAI MATHEMATICA 52 (2), 51-55, 2007 | 3 | 2007 |

Ecuaţii diferenţiale de ordinul întâi cu modificare mixtă a argumentului VA Ilea Presa Universitară Clujeană, 2006 | 3 | 2006 |