@article {1521,
	title = {Heterostructures of ZnO-Zn coaxial nanocables and ZnO nanotubes},
	journal = {Appl. Phys. Lett.},
	volume = {81},
	year = {2002},
	pages = {1312-1314},
	author = {J.J. Wu and S. C. Liu and C. T. Wu and K.H. Chen* and L. C. Chen}
}
