by Ma, N., Li, J.-F., Zhang, B.P., Lin, Y.H., Ren, L.R., Chen, G.F.
Published in The Journal of physics and chemistry of solids (01.09.2010)

by Li, C.P., Guo, L., Wu, Z.Y., Ren, L.R., Ai, X.C., Zhang, J.P., Lv, Y.Z., Xu, H.B., Yu, D.P.
Published in Solid state communications (01.08.2006)

by YANG, Z., WANG, Y.Z., WU, Z.C., REN, L.R., XIONG, C.J., MA, Y.
Published in Applied ecology and environmental research (2020)

by Ma, N., Li, J.-F., Zhang, B.P., Lin, Y.H., Ren, L.R., Chen, G.F.
Published in The Journal of physics and chemistry of solids (2010)

by Lv, Y.Z., Zhang, Y.H., Li, C.P., Ren, L.R., Guo, L., Xu, H.B., Ding, L., Yang, C.L., Ge, W.K., Yang, S.H.
Published in Journal of luminescence (2007)