Order of authorship in the original publication: Tumpey, Basler, Aguilar... Taubenberger. Reconstruction of the genome of the 1918 Spanish Influenza virus from frozen tissue samples from a mass grave of victims of the 1918 epidemic unearthed from the permafrost at Brevig Mission, Alaska. This and the following paper published in Nature were the culmination of a series of papers published on the pathogenomics of this exceptionally virulent virus by Taubenberger and colleagues from 1997 to 2005.

The authors published a paper in Nature simultaneously with the above-cited 2005 paper in Science: Taubenberger, Ann H. Reid, Rain M. Lourens et al, "Characterization of the 1918 influenza virus polymerase gene," Nature, 437 (2005) 889-893.

In January 2005 Taubenberger, Ann H. Reid, and Thomas G. Fanning also published a paper in Scientific American recounting the unusual history of this research, entitled  "Capturing a killer flu virus." 

The CDC provided an informative history of this research by Douglas Jordan with contributions from Terrence Tumpey and Barbara Jester: "The deadliest flu: The complete story of the discovery and reconstruction of the 1918 pandemic virus," https://www.cdc.gov/flu/pandemic-resources/reconstruction-1918-virus.html

(Thanks to Juan Weiss for this reference and its interpretation.)