@article{CMJ_2000__50_4_a5,
     author = {Eschenbach, Carolyn A. and Hall, Frank J. and Li, Zhongshan},
     title = {Eigenvalue distribution of certain ray patterns},
     journal = {Czechoslovak Mathematical Journal},
     pages = {749--762},
     publisher = {mathdoc},
     volume = {50},
     number = {4},
     year = {2000},
     mrnumber = {1792968},
     zbl = {1079.15504},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2000__50_4_a5/}
}