@article{10_4064_aa114_1_4,
     author = {Jianya Liu and Guangshi L\"u},
     title = {Four squares of primes and 165 powers of 2},
     journal = {Acta Arithmetica},
     pages = {55--70},
     publisher = {mathdoc},
     volume = {114},
     number = {1},
     year = {2004},
     doi = {10.4064/aa114-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa114-1-4/}
}