Comment on 'Integrable potentials with logarithmic integrals of motion'

Abstract
The authors analyse and complete the results of an article by Ichtiaroglou and Voyatzis (see ibid., vol.21, p.3537 (1988)) concerning the existence of integrals of motion, logarithmic in the momenta, for two-dimensional, velocity-dependent Hamiltonians. They find a new integrable case, and establish the generality of some results found by Ichtiaroglou and Voyatzis which were presented as particular cases.