@article{MOMA_1988__106_1_178393,
     author = {Juan Arias de Reyna},
     title = {A {Generalized} {Mean-Value} {Theorem.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {95--98},
     publisher = {mathdoc},
     volume = {106},
     number = {1},
     year = {1988},
     zbl = {0689.26002},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1988__106_1_178393/}
}