@article{10_4064_aa102_4_5,
     author = {Yingchun Cai},
     title = {A remark on {Chen's} theorem},
     journal = {Acta Arithmetica},
     pages = {339--352},
     publisher = {mathdoc},
     volume = {102},
     number = {4},
     year = {2002},
     doi = {10.4064/aa102-4-5},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa102-4-5/}
}