@article{ljs22091,
 author={Bahadur, A. and Mishra, M.},
 year={2013},
 title={Dependence of Ionicity and Thermal Expansion Coefficient on Valence Electron Density in A<sup>II</sup>B<sup>IV</sup>C<sub>2</sub><sup>V</sup> Chalcopyrite Semiconductors},
 journal={Leonardo J. Sci.},
 volume={12},
 number={22},
 pages={91-102},
 url={http://ljs.academicdirect.org/A22/091_102.pdf}
}