@article{10_4064_cm6588_10_2015,
     author = {Min Tang and Xiaoyan Ma and Min Feng},
     title = {On near-perfect numbers},
     journal = {Colloquium Mathematicum},
     pages = {157--188},
     year = {2016},
     volume = {144},
     number = {2},
     doi = {10.4064/cm6588-10-2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm6588-10-2015/}
}