by Xu, S.R., Hao, Y., Zhang, J.C., Zhou, X.W., Yang, L.A., Zhang, J.F., Duan, H.T., Li, Z.M., Wei, M., Hu, S.G., Cao, Y.R., Zhu, Q.W., Xu, Z.H., Gu, W.P.
Published in Journal of crystal growth (01.07.2009)