Li, C.; de Grijs, R.; Bastian, N.; Deng, L.; Niederhofer, F.; Zhang, C. (2016). “The tight subgiant branch of the intermediate-age star cluster NGC 411 implies a single-aged stellar population”. Monthly Notices of the Royal Astronomical Society. 461 (3): 3212–3221. arXiv:1606.05394. Bibcode:2016MNRAS.461.3212L. doi:10.1093/mnras/stw1491.
Cabrera-Ziri, I.; và đồng nghiệp (2016). “No evidence for younger stellar generations within the intermediate-age massive clusters NGC 1783, NGC 1806 and NGC 411”. Monthly Notices of the Royal Astronomical Society. 459 (4): 4218–4223. arXiv:1604.06106. Bibcode:2016MNRAS.459.4218C. doi:10.1093/mnras/stw966.
Li, C.; de Grijs, R.; Bastian, N.; Deng, L.; Niederhofer, F.; Zhang, C. (2016). “The tight subgiant branch of the intermediate-age star cluster NGC 411 implies a single-aged stellar population”. Monthly Notices of the Royal Astronomical Society. 461 (3): 3212–3221. arXiv:1606.05394. Bibcode:2016MNRAS.461.3212L. doi:10.1093/mnras/stw1491.
Cabrera-Ziri, I.; và đồng nghiệp (2016). “No evidence for younger stellar generations within the intermediate-age massive clusters NGC 1783, NGC 1806 and NGC 411”. Monthly Notices of the Royal Astronomical Society. 459 (4): 4218–4223. arXiv:1604.06106. Bibcode:2016MNRAS.459.4218C. doi:10.1093/mnras/stw966.
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Li, C.; de Grijs, R.; Bastian, N.; Deng, L.; Niederhofer, F.; Zhang, C. (2016). “The tight subgiant branch of the intermediate-age star cluster NGC 411 implies a single-aged stellar population”. Monthly Notices of the Royal Astronomical Society. 461 (3): 3212–3221. arXiv:1606.05394. Bibcode:2016MNRAS.461.3212L. doi:10.1093/mnras/stw1491.
Cabrera-Ziri, I.; và đồng nghiệp (2016). “No evidence for younger stellar generations within the intermediate-age massive clusters NGC 1783, NGC 1806 and NGC 411”. Monthly Notices of the Royal Astronomical Society. 459 (4): 4218–4223. arXiv:1604.06106. Bibcode:2016MNRAS.459.4218C. doi:10.1093/mnras/stw966.