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The orbital fits of multi-planetary systems from radial velocity data has proved to be a complex task. In some cases, different orbital solutions provide similarly good fits, especially when two planets are near mean-motion resonances. Ferraz-Melloet al(2005) and Goździewskiet al(2005) showed that the published best fits of systemsHD82932andHD160691are dynamically unstable, and re-determined their orbital parameters with Monte Carlo and genetic algorithms. In both cases dynamically stabledoi:10.1017/s1743921306004297 fatcat:grpf5keatbeqvf5tkmguuimbsa