@article{10_37236_2776,
     author = {David Clark and Vladimir D. Tonchev},
     title = {Enumeration of (16,4,16,4) relative difference sets},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {1},
     doi = {10.37236/2776},
     zbl = {1267.05047},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2776/}
}