Berkani M. S., Giurgea S., Espanet C., Kieffer C., 2013, Study on Optimal Design Based on Direct Coupling Between a FEM Simulation Model and L-BFGS-B Algorithm, IEEE Trans on Magnetics, Vol. 49, No. 5, pp. 2149-2152

Seo Jang Ho, Lim Jae Won, Kwon Chung, Kim Min Suk, 2008, Harmonic Iron Analysis of Traction Motor in the High Speed Train with the Distributed Tractions, Pro- ceedings of the Korean Society of Railway Engineers Conference, pp. 162-168

Lee Eun Jung, Oh PK, 2010, A study on a Neural Network model using Quasi-Newton method, Hanyang University

Ronald Schoenberg, 2001, Optimization with the Quasi- Newton Method, Aptech Systems, Inc. Maple Valley, WA

Choi Changhyeon, 2005, Policy Analysis Level 1 Level Metering Analysis 2005 Edition, Chapter 9

Cho Gyu-won, 2014, A study on the precise estimation of parameters and improvement of efficiency in IPMSM, Changwon University Doctoral Thesis