TY - JOUR AU - Alexander Quaas AU - Boyan Sirakov TI - Solvability of monotone systems of fully nonlinear elliptic PDE's JO - Comptes Rendus. Mathématique PY - 2008 SP - 641 EP - 644 VL - 346 IS - 11-12 PB - Elsevier DO - 10.1016/j.crma.2008.04.008 LA - en ID - CRMATH_2008__346_11-12_641_0 ER -