1. S. Lai, in IEDM (2008), pp. 1–6
2. R. Waser, M. Aono, Nat. Mater. 6(11), 833 (2007)
3. M.J. Lee, Y. Park, B.S. Kang, S.E. Ahn, C. Lee, K. Kim, W. Xianyu, G. Stefanovich, J. Lee, S.J. Chung, Y.H. Kim, C.S. Lee, J.B. Park, I.K. Yoo, in IEDM (2007), pp. 771–774
4. Q. Zuo, S. Long, S. Yang, Q. Liu, L. Shao, Q. Wang, S. Zhang, Y. Li, Y. Wang, M. Liu, IEEE Electron Device Lett. 31(4), 344 (2010)
5. M.N. Kozicki, M. Balakrishnan, C. Gopalan, C. Ratnakumar, M. Mitkova, in Proc. of NVMTS (2005), pp. 83–89