ESPRI: Astrometric planet search with PRIMA at the VLTIA. Quirrenbach, R. Geisler, T. Henning, R. Launhardt, N. Elias, F. Pepe, D. Queloz, S. Reffert, D. Ségransan and J. SetiawanEPJ Web of Conferences, 16 (2011) 07005DOI: https://doi.org/10.1051/epjconf/20111607005