@article{120266, author = {Irena Rach\r unkov\'a}, title = {An existence theorem of the Leray-Schauder type for four-point boundary value problems}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {30}, year = {1991}, pages = {49-59}, zbl = {0752.34016}, mrnumber = {1166425}, language = {en}, url = {http://dml.mathdoc.fr/item/120266} }
Rachůnková, Irena. An existence theorem of the Leray-Schauder type for four-point boundary value problems. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 30 (1991) pp. 49-59. http://gdmltest.u-ga.fr/item/120266/
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