Advances in Hamiltonian systems / I. Ekeland [et al.], 1983 (Annals of the CEREMADE)
Il faut taxer la spéculation financière / Ivar Ekeland, Jean-Charles Rochet, 2020
Internet, https://lccn.loc.gov/n81086962, 2019-02-01
Information trouvée : Ekeland, I. (Ivar), 1944-
Le Calcul, l'imprévu / I. Ekeland, 1987