||Andreas Bracher, Spencer M. Whitney, F. Ulrich Hartl, and Manajit Hayer-Hartl, Biogenesis and Metabolic Maintenance of Rubisco, Annu. Rev. Plant Biol. 2017. 68:6.1–6.32 DOI: 10.1146/annurev-arplant-043015-111633 p.6.12 2nd paragraph
|| Paila YD, Richardson LG, Schnell DJ. New insights into the mechanism of chloroplast protein import and its integration with protein quality control, organelle biogenesis and development. J Mol Biol. 2015 Mar 13427(5):1038-60. doi: 10.1016/j.jmb.2014.08.016.PubMed ID25174336
||P.6.12 2nd paragraph: "The diversity in both Cpn60 and the Cpn10/Cpn20 cofactors provides for combinatorial possibilities, presumably adjusting
the chaperones to protein subsets among the ∼3,000 chloroplast proteins (primary source)."