Jornada Bibliography
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The use of variation in the natural abundance of 15N to assess symbiotic nitrogen fixation by woody plants. Stable Isotopes in Ecological Research. Ecological Studies:375-395.
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1989. Using strontium and rubidium tracers to characterize nutrient uptake patterns in creosotebush and mesquite. The Southwestern Naturalist. 41:239-247.
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1996.