@article{10_4064_aa150_2_6,
     author = {Liqun Hu and Li Yang},
     title = {The number of powers of 2 in a representation
 of large odd integers},
     journal = {Acta Arithmetica},
     pages = {175--192},
     publisher = {mathdoc},
     volume = {150},
     number = {2},
     year = {2011},
     doi = {10.4064/aa150-2-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa150-2-6/}
}