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APA Citation
Shi, M., Zhu, C., Wei, M., He, Z., & Lu, M. (2018). dy3+-, Tb3+-, and Eu3+-activated NaCa4(BO3)3 phosphors for lighting based on near ultraviolet light emitting diodes. Vacuum, 149, 343–349. http://access.bl.uk/ark:/81055/vdc_100056442207.0x00004e