Stockhaus, J., Schell, J., & Willmitzer, L. (1989). Correlation of the Expression
of the Nuclear Photosynthetic Gene-St-Ls1 with the Presence of Chloroplasts. EMBO Journal,
8(9), 2445-2451. Retrieved from <Go to ISI>://A1989AM10300001 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC401227/pdf/emboj00133-0009.pdf?tool=pmcentrez.