@article{article96077ec8,
title   = {Measurement of Direct Photon Production in p + p Collisions at ''S POT. 1/2' = 200 GeV'},
author = {Adler, S S and Dietzsch, Olácio and Leite, Marco Aurelio Lisboa and Silva, Cesar Luiz da and Takagui, E. M.},
year = {2007},
journal   = {Physical Review Letters}
}