V477 Lyr

References

1. Pollacco1994
   Pollacco, D. L. & Bell, S. A. “A Preliminary Analysis of the Planetary Nebula Central Star V477 Lyrae”: 1994, Monthly Notices of the Royal Astronomical Society, Volume 267, pp. 452-464
   http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1994MNRAS.267..452P&db_key=AST&high=3f567b0b2c18109