Tollefsen, Torstein, 1953- (Personal Name)

Tenkere og ideer : filosofiens historie fra antikken til vår egen tid, 1997: title page (Torstein Tollefsen [co-author]) back cover (born 1953)

The christocentric cosmology of St. Maximus the Confessor, 2000: title page (by Torstein Tollefsen)

The christocentric cosmology of St Maximus the Confessor, 2008: title page (Torstein Theodor Tollefsen)

St Theodore the Studite's defence of the icons, 2018: title page (Torstein Theodor Tollefsen) jacket flap (Torstein Theodor Tollefsen is Professor of Philosophy in the Department of Philosophy, Classics, History of Art and Ideas at the University of Oslo)

Norwegian Wikipedia, viewed July 1, 2020 (Torstein Tollefsen; Torstein Theodor Tollefsen; born August 15, 1953; Norwegian professor of philosophy at the University of Oslo; he obtained his doctorate in 2000 with a thesis entitled The christocentric cosmology of St. Maximus the Confessor)

University of Oslo, Department of Philosophy, Classics, History of Art and Ideas website, viewed July 1, 2020: link to People page (Torstein Tollefsen, Professor; holds his doctorate from the University of Oslo; research interest: philosophy of the Greek church fathers within the period of 300-900) https://www.hf.uio.no/ifikk/english/people/aca/philosophy/tenured/tollefse/index.html