Ahmadian, M. R., Zor, T., Vogt, D., Kabsch, W., Selinger, Z., Wittinghofer, A., et al. (1999). Guanosine triphosphatase stimulation of oncogenic Ras mutants. Proceedings of the National Academy of Sciences of the United States of America, 96(12), 7065-7070. doi:10.1073/pnas.96.12.7065.