Topological Methods for Ordinary Differential Equations Lectures given at the 1st Session of the Centro Internazionale Matematico Estivo (C.I.M.E.) held in Montecatini Terme, Italy, June 24-July 2, 1991 Fitzpatrick, Patrick Heftet / 1993 / Engelsk
Stability and Bifurcation Theory for Non-Autonomous Differential Equations Cetraro, Italy 2011, Editors: Russell Johnson, Maria Patrizia Pera Capietto Anna Heftet / 2012 / Engelsk
New Integrals Proceedings of the Henstock Conference held in Coleraine, Northern Ireland, August 9-12, 1988 Bullen Peter S. Heftet / 1990 / Engelsk
La correspondance entre Henri Poincaré et les mathématiciens Nabonnand Philippe Innbundet / 2024 / Fransk
