Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

• R. Decarli94 · h 61
• C. Vignali91 · h 67
• R. Gilli68 · h 65
• S. Ettori2 profiles66 · h 64
• F. Walter59 · h 100
• A. Mucciarelli58 · h 39
• S. Marchesi57 · h 34
• E. Vanzella53 · h 72
• B. Venemans51 · h 56
• M. Bellazzini48 · h 64
• E. Bañados47 · h 47
• F. Calura47 · h 40

• National Institute for AstrophysicsIT1.1k papers
• University of BolognaIT888 papers
• Centre National de la Recherche ScientifiqueFR738 papers
• Osservatorio Astronomico di PadovaIT537 papers
• Astronomical Observatory of RomeIT484 papers
• Arcetri Astrophysical ObservatoryIT444 papers
• Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT439 papers
• Max Planck Institute for AstronomyDE437 papers
• California Institute of TechnologyUS416 papers
• Trieste Astronomical ObservatoryIT403 papers
• University of GenevaCH395 papers
• Astronomical Observatory of CapodimonteIT388 papers