TY - BOOK AU - Klingenberg,Wilhelm TI - Lectures on closed geodesics SN - 0387083936 : U1 - 526.1 PY - 1978/// CY - Berlin PB - Springer-Verlag KW - Riemannian manifolds KW - Curves on surfaces KW - Geodesics (Mathematics) N1 - Includes bibliographical references and index ER -