BibTex format
@article{Zepf:2003:10.1103/PhysRevLett.90.064801,
author = {Zepf, M and Clark, EL and Beg, FN and Clarke, RJ and Dangor, AE and Gopal, A and Krushelnick, K and Norreys, PA and Tatarakis, M and Wagner, U and Wei, MS},
doi = {10.1103/PhysRevLett.90.064801},
journal = {PHYSICAL REVIEW LETTERS},
title = {Proton acceleration from high-intensity laser interactions with thin foil targets},
url = {http://dx.doi.org/10.1103/PhysRevLett.90.064801},
volume = {90},
year = {2003}
}