@article{SisLab818,
          volume = {30},
          number = {6},
           title = {Control of Whispering-Gallery-Mode Spectrum from Erbium-doped Silica Microsphere Lasers},
          author = {Van Hoi Pham and Huy Bui and Thanh Son Pham and The Anh Nguyen and Thuy Van Nguyen and Huu Thang Le and Trung Ninh Bui and Van Phu Nguyen and Roberto Coisson},
            year = {2013},
           pages = {1586 -- 1589},
         journal = {Journal of the Optical Society of America B},
             url = {https://eprints.uet.vnu.edu.vn/eprints/id/eprint/818/}
}