TY - BOOK ID - 9114898 TI - Planetary nebulae. Observations and theory : IAU symposium, held at Cornell University, Ithaca, New York, U.S.A., June 6-10, 1977 PY - 1978 SN - 902770872X 9027708738 PB - Dordrecht ; Boston, MA : D. Reidel, DB - UniCat KW - 52 <063> KW - Planetary nebulae KW - -Nebulae, Planetary KW - Interstellar matter KW - Stars KW - Astronomie. Astrofysica. Ruimteonderzoek. Geodesie--Congressen KW - Congresses KW - Congresses. KW - -Astronomie. Astrofysica. Ruimteonderzoek. Geodesie--Congressen KW - -Congresses UR - https://www.unicat.be/uniCat?func=search&query=sysid:9114898 AB - ER -