Østberg, Jan Sigurd, ed. (2011). "En reise gjennom 200 år". St. Hallvard (in Norwegian) (1). Oslo: Selskabet for Oslo Byes Vel: 30–49. ISSN0036-2859. OCLC185445036.
Østberg, Jan Sigurd, ed. (2010). "Medlemskap, abonnement". St. Hallvard (in Norwegian) (3–4). Oslo: Selskabet for Oslo Byes Vel. Front flap. ISSN0036-2859. OCLC185445036.