@article{10_4064_aa139_4_6,
     author = {S\'andor Z. Kiss},
     title = {On the number of representations of integers
 as the sum of $k$ terms},
     journal = {Acta Arithmetica},
     pages = {395--406},
     publisher = {mathdoc},
     volume = {139},
     number = {4},
     year = {2009},
     doi = {10.4064/aa139-4-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa139-4-6/}
}