%0 Journal Article %T Second‐order finite element method and its practical application in charged particle optics %A ZHU, X. %A MUNRO, E. %J Journal of Microscopy %V 179 %N 2 %P 170-180 %@ 0022-2720 %D 1995-01-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve