PHYSICS 68 ADVANCED MECHANICS: LAGRANGIAN MECHANICS - YouTube。Finding the Lagrangian for Elastic and Inelastic Collisions。Unified solid–fluid Lagrangian FEM model derived from。New Third-Order Finite Volume Unequal-Sized WENO Lagrangian。Global Formulation of Lagrangian and Hamiltonian Dynamics on Manifolds, Taeyoung Lee, Melvin Leok, N. Harris McClamroch