@article{AM2_1991__41_2-3_137411,
     author = {Yitzhak Weit},
     title = {On a generalized asymptotic mean value property.},
     journal = {Aequationes mathematicae},
     pages = {242--247},
     publisher = {mathdoc},
     volume = {41},
     number = {2-3},
     year = {1991},
     zbl = {0745.30041},
     url = {http://geodesic.mathdoc.fr/item/AM2_1991__41_2-3_137411/}
}