Solving Theodorsen's Integral Equation for Conformai Maps with the Fast Fourier Transform and Various Nonlinear Iterative Methods. M.H. Gutknecht (1980/1981) Numerische Mathematik
Some remarks on a theorem of S.M. Lozinski concerning linear process of approximation of periodic functions A. Varma (1972) Studia Mathematica
Stability Properties of Trigonometric Interpolating Operators. Peter D. Morris, Elliott W. Cheney (1973) Mathematische Zeitschrift
Sur l'interpolation au moyen des fonctions circulaires F. Gomes Teixeira (1885) Nouvelles annales de mathématiques : journal des candidats aux écoles polytechnique et normale