Comparing FEM-BEM and FEM-DBCI for open-boundary electrostatic field problemsG. Aiello, S. Alfonzetti, G. Borzi, E. Dilettoso and N. SalernoEur. Phys. J. Appl. Phys., 39 2 (2007) 143-148DOI: https://doi.org/10.1051/epjap:2007083