TY  - JOUR
AU  - Rachůnková, Irena
TI  - An existence theorem of the Leray-Schauder type for four-point boundary value problems
JO  - Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
PY  - 1991
SP  - 49
EP  - 59
VL  - 30
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUPO_1991__30_1_a4/
LA  - en
ID  - AUPO_1991__30_1_a4
ER  -