SEPIA – a new single pixel receiver at the APEX telescope V. Belitsky, I. Lapkin, M. Fredrixon, D. Meledin, E. Sundin, B. Billade, S.-E. Ferm, A. Pavolotsky, H. Rashid, M. Strandberg et al. (24 more) A&A, 612 (2018) A23 Published online: 13 April 2018 DOI: 10.1051/0004-6361/201731458