@article{10_37236_2153,
     author = {Masanori Ando},
     title = {A combinatorial proof of an identity for the divisor generating function},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {2},
     doi = {10.37236/2153},
     zbl = {1267.05017},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2153/}
}