@article{10_37236_1187,
     author = {Jeffrey H. Dinitz and Douglas R. Stinson and L. Zhu},
     title = {On the sprectra of certain classes of {Room} frames},
     journal = {The electronic journal of combinatorics},
     year = {1994},
     volume = {1},
     doi = {10.37236/1187},
     zbl = {0814.05018},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1187/}
}