@article{10_37236_1257,
     author = {Irene Gassko},
     title = {Stapled sequences and stapling coverings of natural numbers},
     journal = {The electronic journal of combinatorics},
     year = {1996},
     volume = {3},
     number = {1},
     doi = {10.37236/1257},
     zbl = {0903.11003},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1257/}
}