TY - JOUR AU - Youri V. Egorov AU - Vladimir A. Kondratiev AU - Bert-Wolfgang Schulze TI - On completeness of root functions of elliptic boundary problems in a domain with conical points on the boundary JO - Comptes Rendus. Mathématique PY - 2002 SP - 649 EP - 654 VL - 334 IS - 8 PB - Elsevier DO - 10.1016/S1631-073X(02)02320-8 LA - en ID - CRMATH_2002__334_8_649_0 ER -