Acta Scientiarum Mathematicarum : Tomus 50. Fasc. 1-2. (1986)
Acta Scientiarum Mathematicarum : Tomus 50. Fasc. 3-4. (1986)
Acta Scientiarum Mathematicarum Repertórium 1(1922)-50(1986) : List of papers in the alphabetical order of the names of authors. (1986)