@article{10_37236_6330,
     author = {Matthew Ashford and Oliver Riordan},
     title = {Counting racks of order \(n\)},
     journal = {The electronic journal of combinatorics},
     year = {2017},
     volume = {24},
     number = {2},
     doi = {10.37236/6330},
     zbl = {1364.05035},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/6330/}
}