@article{10_4064_aa_70_1_85_91,
     author = {Vsevolod Lev and Pavel Smeliansky},
     title = {On addition of two distinct sets of integers},
     journal = {Acta Arithmetica},
     pages = {85--91},
     publisher = {mathdoc},
     volume = {70},
     number = {1},
     year = {1995},
     doi = {10.4064/aa-70-1-85-91},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-70-1-85-91/}
}