A new on-line monitoring method of transformer winding axial displacement based on measurement of scattering parameters and decision tree. - M. Akhavanhejazi; Gevorg B. Gharehpetian; Reza Faraji-Dana; Gholamreza Moradi 002; Mohammad Mohammadi 001; H. A. Alehoseini (Expert Syst. Appl., 2011)