C. Jordan

Approximation and Graduation According to the Principle of Least Squares by Orthogonal Polynomials

C. Jordan, 1932 .

OEuvres de G.-H. Halphen. Tome II

H. Poincaré, É. Picard, G. Halphen, 1919 .

Les Coefficients d'Intensite Relative de Korosy.

Charles Jordan, C. Jordan, 1930 .