Optical and mechanical updates in the GREGOR Infrared Spectrograph for simultaneous spectral observations

1. Regalado Olivares, S.
2. López López, R.
3. González, F.
4. Collados, M.
5. Dominguez-Tagle, C.
6. Mato Martínez, A.
7. Vaz Cedillo, J.J.
8. Quintero Noda, C.
9. Quintero Nehrkorn, J.
10. Rodriguez Delgado, H.
11. Barreto, M.