@article{CM_1985__56_2_153_0,
     author = {Adachi, Toshiaki and Sunada, Toshikazu},
     title = {Energy spectrum of certain harmonic mappings},
     journal = {Compositio Mathematica},
     pages = {153--170},
     publisher = {Martinus Nijhoff Publishers},
     volume = {56},
     number = {2},
     year = {1985},
     mrnumber = {809864},
     zbl = {0578.58009},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1985__56_2_153_0/}
}