Greco, Carlo. "Periodic trajectories of a class of Lorentz-metrics of a time-dependent gravitational field.." Mathematische Annalen 287.3 (1990): 515-522. <http://eudml.org/doc/164701>.
@article{Greco1990, author = {Greco, Carlo}, journal = {Mathematische Annalen}, keywords = {Lorentz metric; timelike periodic trajectory; timelike geodesics}, number = {3}, pages = {515-522}, title = {Periodic trajectories of a class of Lorentz-metrics of a time-dependent gravitational field.}, url = {http://eudml.org/doc/164701}, volume = {287}, year = {1990}, }
TY - JOUR AU - Greco, Carlo TI - Periodic trajectories of a class of Lorentz-metrics of a time-dependent gravitational field. JO - Mathematische Annalen PY - 1990 VL - 287 IS - 3 SP - 515 EP - 522 KW - Lorentz metric; timelike periodic trajectory; timelike geodesics UR - http://eudml.org/doc/164701 ER -