Template:Klingenberg1978
From Manifold Atlas
W. Klingenberg, Lectures on closed geodesics, Springer-Verlag, 1978. MR0478069 (57 #17563) Zbl 0517.58004
W. Klingenberg, Lectures on closed geodesics, Springer-Verlag, 1978. MR0478069 (57 #17563) Zbl 0517.58004