TY  - SER
AU  - Jennings, L. S
AU  - Keerthipala, W. W. L
AU  - Elhirbawy, M A
TI  - Variable Step Length Finite Difference Method  for  Calculation of3 Phase Electromagnetic Field InLong Conductor Approach
KW  - Maxwell'S Equations
KW  - Power Transmission Lines
KW  - Sparse Matrices
ER  -