Photoionized nebulae, stars and the chemical evolution of galaxies
The correlation between jets and the complex morphology of planetary nebulae
Ag carinae: a luminous blue variable with a high rotational velocity
Planetary nebulae and central stars: stellar winds and metallicity
Planetary nebulae, stars and chemical evolution of stellar systems
Analysis and interpretation of SOAR spectra of symbiotic stars in the Magellanic C...