Hartogh, Paul MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society; Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society;
de Graauw, T., Whyborn, N. D., van de Stadt, H., Beaudin, G., Beintema, D. A., Belitsky, V., et al. (1998). Heterodyne instrument for FIRST (HIFI): preliminary design. In Proc. SPIE.