TY - JOUR AU - Iossif Ostrovskii AU - Alexander Ulanovskii TI - On sign changes of tempered distributions having a spectral gap at the origin JO - Comptes Rendus. Mathématique PY - 2003 SP - 325 EP - 330 VL - 336 IS - 4 PB - Elsevier DO - 10.1016/S1631-073X(03)00036-0 LA - en ID - CRMATH_2003__336_4_325_0 ER -