1. An Introduction to Riemann-Finsler Geometry;Bao,2000
2. Lectures on Differential Geometry;Chern,2000
3. Finsler Geometry in Classical Physics;Suzuki;J. College of Arts and Sciences, Chiba University,1956
4. The Variational Principles of Mechanics;Lanczos,1986
5. Finsler geometry without line elements faced to applications;Kozma;Rep. Math. Phys.,2003