TY - JOUR AU - Russell C. Thompson TI - On extremal solutions to infinite dimensional non-linear second order systems JO - Annales Polonici Mathematici PY - 1983 SP - 73 EP - 88 VL - 41 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-41-1-73-88/ DO - 10.4064/ap-41-1-73-88 LA - en ID - 10_4064_ap_41_1_73_88 ER -