List of citations in Numdam for : Conservation laws for the nonlinear Schrödinger equation
Annales de l'I.H.P. Analyse non linéaire, Volume 2 (1985) no. 1, pp. 67-74.
Annales de l'I.H.P. Analyse non linéaire, Volume 3 (1986) no. 4, pp. 285-314.