@article{10_4064_aa136_2_6,
     author = {Fok-Shuen Leung},
     title = {Manin's conjecture on a nonsingular
 quartic del {Pezzo} surface},
     journal = {Acta Arithmetica},
     pages = {177--199},
     publisher = {mathdoc},
     volume = {136},
     number = {2},
     year = {2009},
     doi = {10.4064/aa136-2-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa136-2-6/}
}