On the nitrogen abundance of fast, low-ionization emission regions : the outer knots of the planetary nebula NGC 7009GONCALVES, D. R; ERCOLANO, B; CARNERO, A et al.Monthly Notices of the Royal Astronomical Society. 2006, Vol 365, Num 3, pp 1039-1049, issn 0035-8711, 11 p.Article

The chemical content of nearby galaxies from planetary nebulae : NGC 147GONCALVES, D. R; MAGRINI, L; LEISY, P et al.Monthly Notices of the Royal Astronomical Society. 2007, Vol 375, Num 2, pp 715-724, issn 0035-8711, 10 p.Article

Low-ionization pairs of knots in planetary nebulae: physical properties and excitationGONCALVES, D. R; MAMPASO, A; CORRADI, R. L. M et al.Monthly notices of the Royal Astronomical Society (Print). 2009, Vol 398, Num 4, pp 2166-2176, issn 0035-8711, 11 p.Article

Extragalactic jets driven by Alfvèn wavesGONCALVES, D. R; JATENCO-PEREIRA, V; OPHER, R et al.Astronomy and astrophysics (Berlin. Print). 1993, Vol 279, Num 2, pp 351-358, issn 0004-6361Article

The chemical evolution of IC 10YIN, J; MAGRINI, L; MATTEUCCI, F et al.Astronomy and astrophysics (Berlin. Print). 2010, Vol 520, issn 0004-6361, A55.1-A55.10Article

K 4-47: a planetary nebula excited by photons and shocksGONCALVES, D. R; MAMPASO, A; CORRADI, R. L. M et al.Monthly Notices of the Royal Astronomical Society. 2004, Vol 355, Num 1, pp 37-43, issn 0035-8711, 7 p.Article

The ionization mechanism of NGC 185: how to fake a Seyfert galaxy?MARTINS, L. P; LANFRANCHI, G; GONCALVES, D. R et al.Monthly notices of the Royal Astronomical Society (Print). 2012, Vol 419, Num 4, pp 3159-3166, issn 0035-8711, 8 p.Article

Physico-chemical spectroscopic mapping of the planetary nebula NGC 40 and the 2_{D_NEB}, a new 2D algorithm to study ionized nebulaeLEAL-FERREIRA, M. L; GONCALVES, D. R; MONTEIRO, H et al.Monthly notices of the Royal Astronomical Society (Print). 2011, Vol 411, Num 2, pp 1395-1408, issn 0035-8711, 14 p.Article

Formation of quasar clouds by thermal instability in the presence of Alfvén wave heatingGONCALVES, D. R; JATENCO-PEREIRA, V; OPHER, R et al.The Astrophysical journal. 1993, Vol 414, Num 1, pp 57-63, issn 0004-637X, 1Article