@article{ASENS_1982_4_15_3_441_0,
     author = {Urakawa, Hajime},
     title = {Bounded domains which are isospectral but not congruent},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {441--456},
     publisher = {Elsevier},
     volume = {Ser. 4, 15},
     number = {3},
     year = {1982},
     doi = {10.24033/asens.1433},
     mrnumber = {84g:58106},
     zbl = {0505.58036},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1433/}
}