1. A Liouville property for Schrödinger operators;Grigor'yan,1997
2. A converse to the mean value theorem for harmonic functions;Hansen;Acta Math.,1993
3. Mean values and harmonic functions;Hansen;Math. Ann.,1993
4. Liouville's theorem and the restricted mean value property;Hansen;J. Math. Pures Appl.,1995
5. Restricted mean value property on Rd, d ≤ 2;Hansen;Expo. Math.,1995