TY - BOOK AU - Ruelgger,Heinz TI - Application of a new set of canorical elements to the three dimensional restricted problem of three bodies U1 - 512.82 PY - 0000///[n.d.] CY - Zurich PB - Aku-fotdruck KW - Perturbation (Mathematics) KW - Three-body problem N1 - Thesis submitted for the doctoral degree of mathematics; Includes bibliographical references and index ER -