@article{10_37236_2117,
     author = {Karen L. Collins and Ann Trenk},
     title = {Nordhaus-Gaddum theorem for the distinguishing chromatic number},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {3},
     doi = {10.37236/2117},
     zbl = {1298.05112},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2117/}
}