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Mathematical Methods in the Applied Sciences > 46 > 14 > 15458 - 15480
Acta Mathematicae Applicatae Sinica, English Series > 2019 > 35 > 3 > 564-579
Journal of Fixed Point Theory and Applications > 2019 > 21 > 1 > 1-17
Czasopismo Techniczne. Nauki Podstawowe > 2013 > R. 110, z. 1-NP > 11--17
Nonlinear Analysis > 2011 > 74 > 10 > 3204-3217
Mathematical and Computer Modelling > 2009 > 50 > 11-12 > 1583-1594
Computers and Mathematics with Applications > 2004 > 47 > 6-7 > 863-875
Annales Polonici Mathematici > 1999 > 72 > 3 > 197-206