TY - JOUR AU - C. Zhang AU - S. Kwok BT - Astronomy and Astrophysics N1 - JILA Pub. 4476 PY - 1989 SP - 479 EP - 494 T2 - Astronomy and Astrophysics TI - IRAS spectroscopic observations of young planetary nebulae UR - http://articles.adsabs.harvard.edu/full/1990A\%26A...237..479Z VL - 237 ER -