Three planets around HD 27894 - A close-in pair with a 2:1 period ratio and an eccentric Jovian planet at 5.4 AUT. Trifonov, M. Kürster, M. Zechmeister, O. V. Zakhozhay, S. Reffert, M. H. Lee, F. Rodler, S. S. Vogt and S. S. BremsA&A, 602 (2017) L8DOI: https://doi.org/10.1051/0004-6361/201731044