P.G.L. Leach

The Ermakov equation: A commentary

P.G.L. Leach, S. K. Andriopoulos, P. Leach, 2008 .

Linearisable Third-Order Ordinary Differential Equations and Generalised Sundman Transformations: The Case X′′′=0

T. Wolf, P.G.L. Leach, N. Euler, 2002 .

Lagrangians Galore

M. C. Nucci, P.G.L. Leach, P. Leach, 2007, 0706.1008.