Recovering Holomorphic Functions from Their Real or Imaginary Parts without the Cauchy--Riemann Equations

Integration, integrals of Cauchy type, integral representations of analytic functions in the complex plane (30E20) Functional equations in the complex plane, iteration and composition of analytic functions of one complex variable (30D05) Software, source code, etc. for problems pertaining to functions of a complex variable (30-04) Introductory exposition (textbooks, tutorial papers, etc.) pertaining to functions of a complex variable (30-01)