45-00 General reference works (handbooks, dictionaries, bibliographies, etc.) pertaining to integral equations 21
45-01 Introductory exposition (textbooks, tutorial papers, etc.) pertaining to integral equations 170
45E10 Integral equations of the convolution type (Abel, Picard, Toeplitz and Wiener-Hopf type) [See also 47B35] 4480
45Lxx Theoretical approximation of solutions to integral equations {For numerical analysis, see 65Rxx} 1984
45L05 Theoretical approximation of solutions to integral equations {For numerical analysis, see 65Rxx} 1980