Integrability of a generalized short pulse equation revisited
  We further generalize the generalized short pulse equation studied recently in [Commun. Nonlinear Sci. Numer. Simulat. 39 (2016) 21-28; arXiv:1510.08822], and find in this way two new integrable nonlinear wave equations which are transformable to linear Klein-Gordon equations. 
Sergei Sakovich
nlin.SI math-ph math.MP