by Chen, Peng, Tang, X. H.
Published in Taiwanese journal of mathematics (01.06.2012)

by Dacorogna, Bernard, Ribeiro, Ana Margarida
Published in Proceedings of the Royal Society of Edinburgh. Section A. Mathematics (01.10.2004)

by Lucas, Billy Joe
Published in International journal for philosophy of religion (01.12.2002)

by Djebali, Smail, Mebarki, Karima
Published in Electronic journal of qualitative theory of differential equations (01.01.2013)

by Balaban, T
Year of Publication 1971

by Biagi, Stefano, Calamai, Alessandro, Infante, Gennaro
Published in Advanced nonlinear studies (01.11.2020)

by Khan, M.Ali, Rath, Kali P., Sun, Yeneng
Published in Journal of mathematical economics (01.04.1999)

by Liu, Zeqing, Li, Xin, Kang, Shin Min, Cho, Sun Young
Published in Fixed point theory and applications (Hindawi Publishing Corporation) (11.10.2011)

by Zhang, Xingyong, Tang, Xianhua
Published in Taiwanese journal of mathematics (01.06.2011)

by Li, Zijin, Pan, Xinghong
Year of Publication 15.03.2025

by Cesana, Pierluigi, Grillo, Alfio, Morandotti, Marco, Pastore, Andrea
Year of Publication 27.08.2024

by Elgindy, Kareem T., Refat, Hareth M.
Published in AIMS mathematics (2023)

by Cupillari, Antonella
Year of Publication 2005

by Hashem, Hind H. G., Rwaily, Asma Al
Published in AIMS mathematics (01.01.2023)

by Di, Huafei, Li, Liang, Peng, Xiaoming, Wang, Quan
Year of Publication 25.05.2024

by Dacorogna, Bernard, Ribeiro, Ana Margarida
Published in Proceedings of the Royal Society of Edinburgh. Section A. Mathematics (01.01.2005)

by McNeela, Daniel
Year of Publication 19.10.2023

by Bedivan, Dana M.
Published in Numerical functional analysis and optimization (01.01.1997)

by Lassiye, A. T, Tegankong, D
Year of Publication 07.06.2021

by Wong, James S. W.
Published in Differential Equations & Applications (01.05.2012)