@article{An-2002-CPL,
        doi = {10.1088/0256-307X/19/10/333},
	year = {2002},
	volume = {19},
        number = {10},
	pages = {1509-1512},
	author = {An, L. and Tang, Y. and Zheng, H. Z. and Zhang, J. D. and Tan, P. H. and Yang, F. H. and Ji, Y. and Chen, Y. Z.  },
	title = {Occupation modulation of higher subbands in a three-barrier tunnelling structure with a magnetic field },
	journal = {Chin. Phys. Lett.}
}