by Fulling, S A, Yang, Yunyun
Published in Journal of physics. A, Mathematical and theoretical (30.01.2015)

by Messias, Maria Alice de Vasconcelos Feio, Brandemberg, Joao Claudio
Published in Boletim de educação matemática BOLEMA (01.12.2015)

by Eyanthi, P.J, Ramya, D, Selvi, M
Published in TWMS journal of applied and engineering mathematics (01.04.2020)

by Marchuk, A. V., Nishchota, A. V.
Published in International applied mechanics (01.05.2018)

by Bołtuć, Piotr
Published in Entropy (Basel, Switzerland) (01.11.2017)

by Changa, M. E.
Published in Russian mathematical surveys (01.01.2016)

by Alimohammadi, Hossein, Vassiljeva, Kristina, Petlenkov, Eduard, Thalfeldt, Martin, Mikola, Alo, Kull, Tuule Mall, Köse, Ahmet
Published in E3S web of conferences (01.01.2021)

by Hai, Trinh Ngoc, Thuy, Le Qung
Published in Mathematical modelling and analysis (01.01.2019)

by Imdad, Mohammad, Perveen, Atiya, Gubran, Rqeeb
Published in TWMS journal of applied and engineering mathematics (01.01.2020)

by Litvinov, V. A.
Published in Russian physics journal (01.09.2020)

by Kangro, Urve
Published in Mathematical modelling and analysis (04.07.2017)

by Sepehrian, B., Shamohammadi, Z.
Published in Arabian Journal of Mathematics (01.12.2018)

by Ciesielski, Krzysztof Chris, Miller, David
Published in Real analysis exchange (2016)

by Toklu, E
Published in TWMS journal of applied and engineering mathematics (01.01.2019)

by Garbaliauskiene, Virginija, Karaliunaite, Julija, Laurincikas, Antanas
Published in Mathematical modelling and analysis (27.11.2017)

by Magesh, N, Abirami, C, Altinkaya, S
Published in TWMS journal of applied and engineering mathematics (01.01.2021)

by Adiga, Chandrashekar, Naika, M. S. Mahadeva, Ranganatha, D., Shivashankar, C.
Published in Arabian Journal of Mathematics (01.06.2018)

by Nazarianpoor, M., Rassias, J. M., Sadeghi, Gh
Published in Arabian Journal of Mathematics (01.09.2018)

by Farihah, U
Published in IOP conference series. Earth and environmental science (09.04.2019)

by Dias Silva, Flávio R., Nascimento, Flávio A. F., Rodrigues, José H.
Published in Zeitschrift für angewandte Mathematik und Physik (01.12.2015)