Karplus PA, Pearson MA, Hausinger RP (1997). „70 years of crystalline urease: What have we learned?“. Accounts of Chemical Research. 30 (8): 330–337. doi:10.1021/ar960022j. ISSN0001-4842.
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Karplus PA, Pearson MA, Hausinger RP (1997). „70 years of crystalline urease: What have we learned?“. Accounts of Chemical Research. 30 (8): 330–337. doi:10.1021/ar960022j. ISSN0001-4842.