Media type: E-Article Title: Fundamental Physical Parameters of Collimated Gamma-Ray Burst Afterglows Contributor: Panaitescu, A.; Kumar, P. imprint: American Astronomical Society, 2001 Published in: The Astrophysical Journal Language: Not determined DOI: 10.1086/324061 ISSN: 0004-637X Origination: Footnote: Access State: Open Access