Weber M, Suter M, Brunold C, Kopriva S. Sulfate assimilation in higher plants characterization of a stable intermediate in the adenosine 5'-phosphosulfate reductase reaction. Eur J Biochem. 2000 Jun;267(12):3647–53. doi: 10.1046/j.1432-1327.2000.01394.x. PMID: 10848982.