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8 S. E. Almali, "On approximation properties of certain multidi-mensional nonlinear integrals" 9 (9): 3090-3097, 2016
9 C. Bardaro, "On approximation properties for some classes of linear operators of convolution type" 33 (33): 329-356, 1984
10 S. E. Almali, "On approximation properties for non-linear integral operators" 5 (5): 123-129, 2017
1 A. D. Gadjiev, "The order of convergence of singular integrals which depend on two parameters, Special Problems of Functional Analysis and their Appl. to the Theory of Diff. Eq. and the Theory of Func."
2 R. Taberski, "Singular integrals depending on two parameters" 7 : 173-179, 1962
3 R. G. Mamedov, "On the order of convergence of m-singular integrals at gener-alized Lebesgue points and in the space Lp( 1;1)" 27 (27): 287-304, 1963
4 J. Musielak, "On some approximation problems in modular spaces" Publ. House Bulgarian Acad. Sci., Sofia 455-461, 1981
5 A. D. Gadjiev, "On nearness to zero of a family of nonlinear integral operators of Hammerstein, Izv. Akad. Nauk Azerbadzan" 2 : 32-34, 1966
6 H. Karsli, "On convergence of convolution type singular integral operators depending on two parameters" 38 : 25-39, 2007
7 C. Bardaro, "On approximation properties of certain nonconvolution integral operators" 62 (62): 358-371, 1990
8 S. E. Almali, "On approximation properties of certain multidi-mensional nonlinear integrals" 9 (9): 3090-3097, 2016
9 C. Bardaro, "On approximation properties for some classes of linear operators of convolution type" 33 (33): 329-356, 1984
10 S. E. Almali, "On approximation properties for non-linear integral operators" 5 (5): 123-129, 2017
11 T. Swiderski, "Nonlinear singular integrals depending on two parameters" 40 : 181-189, 2000
12 C. Bardaro, "Nonlinear Integral Operators and Appli-cations" Walter de Gruyter & Co. 2003
13 P. L. Butzer, "Fourier Analysis and Approximation, vol. I" Academic Press 1971
14 R. Taberski, "Exponential approximation on the real line, Approximation and function spaces (Warsaw, 1986)" 22 : 449-464, 1989
15 M. D. Spivak, "Calculus" Publish or Perish, Inc 1994
16 B. Rydzewska, "Approximation des fonctions par des int e grales singuli eres ordi-naires" 7 : 71-81, 1973
17 J. Musielak, "Approximation by nonlinear singular integral operators in general-ized Orlicz spaces" 31 : 79-88, 1991
18 C. Bardaro, "Approximation by nonlinear integral op-erators in some modular function spaces" 63 (63): 73-182, 1996
19 Gumrah Uysal, "A generic research on nonlinear non-convolution type singular integral operators" 강원경기수학회 24 (24): 545-565, 2016