@article{10_1090_S0894_0347_1990_1035414_4,
     author = {Guillemin, V.},
     title = {Inverse spectral results on two-dimensional tori},
     journal = {Journal of the American Mathematical Society},
     pages = {375--387},
     publisher = {mathdoc},
     volume = {03},
     number = {2},
     year = {1990},
     doi = {10.1090/S0894-0347-1990-1035414-4},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1990-1035414-4/}
}