1. Multiple object spectroscopy - The Medusa spectrograph
2. GMOS: the GEMINI multiple object spectrographs;Davies,1997
3. FLAMES: a multi-object fiber facility for the VLT;Pasquini,2000
4. Commissioning and performances of the VLT-VIMOS;LeFevre,2003
5. MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope;de Paz,2016