Bibcode
                                    
                            Cepa, J.; Beckman, J. E.
    Referencia bibliográfica
                                    Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 79, no. 1, July 1989, p. 41-49.
Fecha de publicación:
    
                        7
            
                        1989
            
  Número de citas
                                    19
                            Número de citas referidas
                                    19
                            Descripción
                                    From H-alpha CCD observations taken with the 4.2 m William Herschel
Telescope a catalog of 394 HII regions of the spiral NGC 3992 has been
compiled. The distribution of diameters and the luminosity function for
the arm and the interarm HII regions has been studied.