by Suantai, Suthep, Kesornprom, Suparat, Pholasa, Nattawut, Cho, Yeol Je, Cholamjiak, Prasit
Published in AIMS mathematics (01.01.2021)

by Byrne, Charles
Published in Inverse problems (01.04.2002)

by Naraghirad, Eskandar
Published in Taiwanese journal of mathematics (01.04.2014)

by Ceng, Lu-Chuan, Yao, Jen-Chih
Published in Fixed point theory and applications (Hindawi Publishing Corporation) (27.02.2013)