Murakami, K., Kimura, M., Owens, J. T., Meares, C. F., & Ishihama, A. (1997). The two α subunits of Escherichia coli RNA polymerase are asymmetrically arranged and contact different halves of the DNA upstream element. Proc Natl Acad Sci U S A.

Murakami, Katsuhiko, Makoto Kimura, Jeffrey T. Owens, Claude F. Meares, and Akira Ishihama. "The Two α Subunits of Escherichia Coli RNA Polymerase Are Asymmetrically Arranged and Contact Different Halves of the DNA Upstream element." Proc Natl Acad Sci U S A 1997.

Murakami, Katsuhiko, et al. "The Two α Subunits of Escherichia Coli RNA Polymerase Are Asymmetrically Arranged and Contact Different Halves of the DNA Upstream element." Proc Natl Acad Sci U S A 1997.