Volume 5, No. 3 (1988)
Annales de l'Institut Henri Poincaré C

pp. 211–220 Periodic solutions for a class of Lorenz–Lagrangian systemsJ.F. Toland
pp. 221–225 Indice de Morse des points critiques obtenus par minimaxClaude Viterbo
pp. 227–285 A new approach for the analysis of Vortex Methods in two and three dimensionsGeorges-Henri Cottet
pp. 287–295 Non-collision orbits for a class of Keplerian-like potentialsAntonio AmbrosettiVittorio Coti Zelati