A.  Ghosh, Das, P., Gill, M. R., Kar, P., Walkar, M. G., Thomas, J. A., and Das, A., ?Photoactive RuII-polypyridyl complexes that display sequence selectivity and high-affinity binding to duplex DNA through groove binding?, Chemistry A European Journal, vol. 17, no. 7, pp. 2089?2098, 2011.