Ravi Agarwal, Texas A&M University Kingsville, Kingsville, TX, USA; Donal O’Regan, National University of Ireland, Galway, Ireland; Samir Saker, Mansoura University, Mansoura, Egypt / 2016-09-22 / Springer Berlin Heidelberg
Vijay Gupta, Netaji Subhas Institute of Technology, New Delhi, India; Themistocles M. Rassias, National Technical University of Athens, Athens, Greece; P. N. Agrawal, Indian Institute of Technology, / 2018-07-18 / Springer Berlin Heidelberg
Józef Bana, Rzeszów University of Technology, Rzeszow, Poland; Mohammad Mursaleen, Aligarh Muslim University, Aligarh, India / 2016-09-27 / Springer Berlin Heidelberg