@article{piasecki_1997, 
  title={A GEOMETRICAL CHARACTERIZATION OF AUMD BANACH SPACES VIA SUBHARMONIC FUNCTIONS}, 
  volume={30}, 
  DOI={10.1515/dema-1997-0321}, 
  publisher={Walter de Gruyter GmbH}, 
  author={Piasecki}, 
  year={1997}, 
  month={Jul}
  }