@article{10_4064_aa117_1_1,
     author = {Gang Yu},
     title = {Average size of {2-Selmer} groups of elliptic curves, {II}},
     journal = {Acta Arithmetica},
     pages = {1--33},
     publisher = {mathdoc},
     volume = {117},
     number = {1},
     year = {2005},
     doi = {10.4064/aa117-1-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa117-1-1/}
}