TY - JOUR AU - Winkler, P AU - Reipurth, B C2 - Astrophysical Letters & Communications DA - 1992-01-01 LA - en M1 - 389 PB - Astrophysical Letters & Communications PY - 1992 TI - G203.2-12.3: A new optical supernova remnant in Orion ER -