@article{Kahler:2016IP, author = "Kahler, Stephen W.", title = "{Solar Energetic Particle Event Onsets: Far Backside Solar Sources and the East-West Hemispheric Asymmetry }", doi = "10.22323/1.236.0047", journal = "PoS", year = 2016, volume = "ICRC2015", pages = "047" }