Surprising Variability of the Planetary Nebula IC 4997 $$=$$ QV Sge
Crossref DOI link: https://doi.org/10.1134/S1063773720020012
Published Online: 2020-08-19
Published Print: 2020-02
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Arkhipova, V. P.
Burlak, M. A.
Ikonnikova, N. P.
Komissarova, G. V.
Esipov, V. F.
Shenavrin, V. I.
Text and Data Mining valid from 2020-02-01
Version of Record valid from 2020-02-01
Article History
Received: 25 December 2019
Revised: 13 January 2020
Accepted: 28 January 2020
First Online: 19 August 2020