1. The volume mean-value property of harmonic functions;['Armitage, David H.', 'Goldstein, Myron'];Complex Variables, Theory Appl.,1990
2. On the mean-value property of harmonic functions;['Epstein, Bernard'];Proc. Am. Math. Soc.,1962
3. Inverse mean value property of harmonic functions;['Hansen, Wolfhard', 'Netuka, Ivan'];Math. Ann.,1993
4. A converse of the mean value theorem for harmonic functions;['Kosmodemʼyanskij, A. A. Jr'];Russ. Math. Surv.,1981
5. On the mean value property of harmonic functions;['Kuran, Ülkü'];Bull. Lond. Math. Soc.,1972