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2. Elser JJ, Fagan WF, Denno RF, Dobberfuhl DR, Folarin A, Huberty A, Interlandi S, Kilham SS, McCauley E, Schulz KL, Siemann EH, Sterner RW: Nutritional constraints in terrestrial and freshwater food webs. Nature 2000, 408:578-80. 3. Knecht MR, Goransson A: Terrestrial plants require nutrients in similar proportions. Tree Physiol 2004, 24:447-460. 4. Gusewell S: N:P ratios in terrestrial plants: variation and functional significance. New Phytol 2004, 164:243-266.PubMed ID11117743, 14757584
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