Planetary nebulae of NGC 4494 (Napolitano+, 2009)
N R Napolitano,A J Romanowsky,L Coccato,Massimo Capaccioli,N G Douglas,E Noordermeer,Ortwin Gerhard,Magda Arnaboldi,Flavio De Lorenzi,Konrad Kuijken,Michael R Merrifield, Ewan Osullivan,Agostino Cortesi,Pratulananda Das,K C Freeman mag(2009)
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planetary nebula,radial velocity
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