Robuta

https://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S0185-11012006000100007&lng=pt&nrm=iso&tlng=en

Galactic Planetary Nebulae with Wolf-Rayet Nuclei III: Kinematical Analysis of a Large Sample of...

planetary nebulae wolf rayet galactic nuclei iii

https://planetarynebulae.net/FR/page_np.php?id=6

Planetary Nebulae

planetary nebulae