Lee, Ting-HuiStanghellini, LetiziaFerrario, LiliaWickramasinghe, Dayal2015-12-08August 7-19781583812396http://hdl.handle.net/1885/34778High Resolution Echelle Spectroscopy of Central Stars of Bipolar Planetary Nebulae: Disclosing the Shaping Mechanisms of Asymmetric Planetary Nebulae20072015-12-08