@article{MS2_1981__48_166734,
     author = {B. Helffer and Pham The Lai},
     title = {Remarque sur la conjecture de {Weyl.}},
     journal = {Mathematica Scandinavica},
     pages = {39--40},
     publisher = {mathdoc},
     volume = {48},
     year = {1981},
     zbl = {0466.35061},
     url = {http://geodesic.mathdoc.fr/item/MS2_1981__48_166734/}
}