TY - JOUR AU - Massabo, I. TI - Unbounded components of solutions for equations of Birkhoff-Kellogg type JO - Portugaliae mathematica PY - 1981 SP - 463 EP - 467 VL - 40 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1981__40_4_115476/ LA - en ID - PORMA_1981__40_4_115476 ER -