Separation of Variables and – Paperback, by Polyanin Andrei D.; – Very Good
By Polyanin, Andrei D.; Zhurov, Alexei I. Separation of Variables and Exact Solutions to Nonlinear PDEs (Advances in Applied Mathematics).
By Polyanin, Andrei D.; Zhurov, Alexei I. Separation of Variables and Exact Solutions to Nonlinear PDEs (Advances in Applied Mathematics).