@article{10_4064_aa115_2_1,
     author = {Tao Liu},
     title = {Representation of odd integers as the sum of one prime,
 two squares of primes and powers of 2},
     journal = {Acta Arithmetica},
     pages = {97--118},
     publisher = {mathdoc},
     volume = {115},
     number = {2},
     year = {2004},
     doi = {10.4064/aa115-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa115-2-1/}
}