@article{CRMATH_2003__336_4_325_0,
     author = {Iossif Ostrovskii and Alexander Ulanovskii},
     title = {On sign changes of tempered distributions having a spectral gap at the origin},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {325--330},
     publisher = {Elsevier},
     volume = {336},
     number = {4},
     year = {2003},
     doi = {10.1016/S1631-073X(03)00036-0},
     language = {en},
}