Asayama M, Kabasawa M, Shirai M. A novel genetic organization: the leuA-rpoD1 locus in the cyanobacterium Microcystis aeruginosa K-81. Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression. 1997 Jan;1350(1):15–20. doi: 10.1016/s0167-4781(96)00191-1.