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Detection of ¹⁵NNH⁺ in L1544: non-LTE modelling of dyazenilium hyperfine line emission and accurate ¹⁴N/¹⁵N values⋆⋆⋆

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The Crab pulsar and its red knot in the near-infrared

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Long term changes in the distribution and δ 15 N values of individual soil amino acids in the absence of plant and fertiliser inputs

By Bol Roland   Ostle Nick   Chenu Claire   Petzke Klaus-Jürgen   Werner Roland   Balesdent Jerome  

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Estimate of production of gaseous nitrogen in the human body based on ¹⁵N analysis of breath N₂ after administration of [¹⁵N₂]urea

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