title: Correction: Preparation of Nd-Fe-B by nitrate-citrate auto-combustion followed by the reduction-diffusion process.
authors.affiliation: Korea Center for Artificial Photosynthesis and Department of Chemistry, Sogang University, Seoul 121-742, Korea. yskang@sogang.ac.kr.
authors.forename: Hao Xuan
authors.initials: HX
authors.lastname: Ma
authors.forename: Chang Woo
authors.initials: CW
authors.lastname: Kim
authors.forename: Dong Soo
authors.initials: DS
authors.lastname: Kim
authors.forename: Ji Hun
authors.initials: JH
authors.lastname: Jeong
authors.forename: In Ho
authors.initials: IH
authors.lastname: Kim
authors.forename: Young Soo
authors.initials: YS
authors.lastname: Kang