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  1. Teran-Hinojosa E, Sobral H, Hernández-Mendoza I, et al. Laser-induced breakdown spectroscopy characterization of tree rings from the Popocatépetl volcano area, Mexico[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 2019, 161: 105713.
  2. Wagner R J, Kaye M W, Abrams M D, et al. Tree-ring growth and wood chemistry response to manipulated precipitation variation for two temperate Quercus species[J]. Tree-Ring Research, 2012, 68(1): 17-29.

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