Παραπομπή APA

Hofer, H., & Zehnder, E. (1994). Symplectic invariants and Hamiltonian dynamics. Birkh�user Verlag.

Παραπομπή Chicago Style

Hofer, Helmut, και Eduard Zehnder. Symplectic Invariants and Hamiltonian Dynamics. Basel ; Boston: Birkh�user Verlag, 1994.

Παραπομπή MLA

Hofer, Helmut, και Eduard Zehnder. Symplectic Invariants and Hamiltonian Dynamics. Birkh�user Verlag, 1994.