{"id":"W2972364312","doi":"10.1038/478029a","title":"A broken biogeochemical cycle","year":2011,"lang":"en","type":"article","venue":"Nature","topic":"Phosphorus and nutrient management","field":"Environmental Science","cited_by":908,"is_retracted":false,"has_abstract":false,"ca_institutions":"McGill University","funders":"","keywords":"Biogeochemical cycle; Environmental science; Astrobiology; Chemistry; Physics; Environmental chemistry","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005989925222078892,"score_gpt":0.1973955404647953,"score_spread":0.1914056152427164,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}