The Let Them Theory: A Life-Changing Tool That Millions of People Can’t Stop Talking About | Paperback | Published by Hay House, Incorporated | Popular Psychology & Personal Growth Guide

Hamiltonian dynamical systems and applications: [proceedings of the NATO Advanced Study Institute on Hamiltonian Dynamical Systems and Applications, Montreal, Canada, 18-29 June 2007] | Authored by NATO Advanced Study Institute on Hamiltonian Dynamical Systems and Applications (2007 Montreal, Québec) | Paperback | Published by Springer