by O’Regan, Donal
Published in Indian journal of pure and applied mathematics (02.03.2024)

by O’Regan, Donal
Published in Aequationes mathematicae (18.05.2024)

by O’Regan, Donal
Published in Rendiconti del Circolo matematico di Palermo (01.06.2024)

by O’Regan, Donal
Published in Resultate der Mathematik (01.12.2023)

by Donal, O'Regan
Published in FIXED POINT THEORY (15.07.2023)

by O’Regan, Donal
Published in Bulletin of the Iranian Mathematical Society (01.12.2023)

by O'Regan, Donal
Published in Nonlinear analysis (Vilnius, Lithuania) (01.01.2023)

by O’Regan, Donal
Published in The Journal of Analysis (01.06.2024)

by Nieto, Juan J., O’Regan, Donal
Published in Nonlinear analysis: real world applications (01.04.2009)

by O’Regan, Donal
Published in Applied mathematics and computation (15.12.2018)

by Pierri, Michelle, O’Regan, Donal, Rolnik, Vanessa
Published in Applied mathematics and computation (15.02.2013)

by Wang, JinRong, Ibrahim, Gamal, Donal O’Regan, Donal
Published in Nonlinear analysis (Vilnius, Lithuania) (08.11.2019)

by Zhao, Yanan, Jiang, Daqing, O’Regan, Donal
Published in Physica A (15.10.2013)

by O'Regan, Donal, Stanek, Svatoslav
Published in Nonlinear dynamics (01.03.2013)

by O'Regan, Donal
Published in FIXED POINT THEORY (15.07.2021)

by O'Regan, Donal
Published in FIXED POINT THEORY (20.02.2021)

by Wang, Chao, Agarwal, Ravi P., O’Regan, Donal
Published in Chaos, solitons and fractals (01.03.2022)

by Zhang, Chuang-liang, Huang, Nan-jing, O’Regan, Donal
Published in Chaos, solitons and fractals (01.02.2023)

by O'Regan, Donal
Published in Applicable analysis (18.08.2018)

by O’Regan, Donal
Published in Symmetry (Basel) (01.12.2021)