@article{10_37236_1378,
     author = {Claude Laflamme and Istv\'an Szalkai},
     title = {Counting {Simplexes} in $R^3$},
     journal = {The electronic journal of combinatorics},
     year = {1998},
     volume = {5},
     doi = {10.37236/1378},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1378/}
}