Krzysztof Goździewski, Maciej Konacki, Andrzej J. Maciejewski. Orbital Configurations and Dynamical Stability of Multiplanet Systems around Sun-like Stars HD 202206, 14 Herculis, HD 37124, and HD 108874. „The Astrophysical Journal”. 645 (1), s. 688-703, 2006-07-01. DOI: 10.1086/504030. (ang.).
Robert A. Wittenmyer, Michael Endl, William D. Cochran. Long-Period Objects in the Extrasolar Planetary Systems 47 Ursae Majoris and 14 Herculis. „The Astrophysical Journal”. 654 (1), s. 625-632, 2007-01-01. DOI: 10.1086/509110. (ang.).