J. Tandori, P. Maroti, E. Alexov, P. Sebban, and L. Baciou. Key role of proline L209 in connecting the distant quinone pockets in the reaction center of Rhodobacter sphaeroides. Proceedings of the National Academy of Sciences, National Academy of Sciences, volume 99, issue 10, pages 6702-6706, 2002. J. Tandori, L. Baciou, E. Alexov, P. Maroti, M. Schiffer, D. K. Hanson, and P. Sebban. ACCELERATED PUBLICATIONS-Revealing the involvement of extended hydrogen bond networks in the cooperative function between distant sites in bacterial reaction centers. Journal of Biological Chemistry, Baltimore [etc.], volume 276, issue 49, pages 45513-45515, 2001. J. Tandori, L. Baciou, E. Alexov, P. Mar\'oti, M. Schiffer, D. K. Hanson, and P. Sebban. Revealing the involvement of extended hydrogen bond networks in the cooperative function between distant sites in bacterial reaction centers. Journal of Biological Chemistry, Elsevier, volume 276, issue 49, pages 45513-45515, 2001.