Calcul du rayon de la sphère inscrite dans le tétraèdre Georges Dostor (1873) Nouvelles annales de mathématiques : journal des candidats aux écoles polytechnique et normale
Characterizing polynomials by forward differences. Almira, Jose María, López-Moreno, Antonio Jesús (2003) Applied Mathematics E-Notes [electronic only]
Conjugated and symmetric polynomial equations. I. Continuous-time systems Jan Ježek (1983) Kybernetika
Conjugated and symmetric polynomial equations. II. Discrete-time systems Jan Ježek (1983) Kybernetika