@article{PhysRevFocus.11.23, title = {Slingshots on the Sun}, author = {Irion, Robert}, journal = {Phys. Rev. Focus}, volume = {11}, issue = {}, pages = {23}, numpages = {1}, year = {2003}, month = {May}, doi = {10.1103/PhysRevFocus.11.23}, url = {http://link.aps.org/doi/10.1103/PhysRevFocus.11.23}, publisher = {American Physical Society} }