@article{120242, author = {J\'an Andres}, title = {On some modification of the Levinson operator and its application to a three-point boundary value problem}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {29}, year = {1990}, pages = {35-43}, zbl = {0756.34024}, mrnumber = {1144829}, language = {en}, url = {http://dml.mathdoc.fr/item/120242} }
Andres, Ján. On some modification of the Levinson operator and its application to a three-point boundary value problem. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 29 (1990) pp. 35-43. http://gdmltest.u-ga.fr/item/120242/
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