TY - JOUR AU - B. Pelloni TI - Spectral analysis of the~elliptic sine-Gordon equation in the~quarter plane JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2009 SP - 189 EP - 201 VL - 160 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2009_160_1_a17/ LA - ru ID - TMF_2009_160_1_a17 ER -