TY - JOUR AU - Sergei A. Nazarov AU - Jari Taskinen TI - Elastic and piezoelectric waveguides may have infinite number of gaps in their spectra JO - Comptes Rendus. Mécanique PY - 2016 SP - 190 EP - 194 VL - 344 IS - 3 PB - Elsevier DO - 10.1016/j.crme.2015.12.004 LA - en ID - CRMECA_2016__344_3_190_0 ER -