found: His Beschädigte Individualität, 1986:t.p. (Rainer Kolk)
found: Die Jugend der Literatur, c2023:title page (Rainer Kolk) back cover (wrote doctoral thesis on Fontane; acquired habilitation with work on George Circle 1890-1945; research focus on 19th and 20th century German literature and the history of German philology)
found: Wikipedia, viewed June 27, 2023:Rainer Kolk (born March 4, 1955 in Detmold; Germanist; Beschädigte Individualität is his Ph. D. thesis; lecturer and adjunct professor at Bonn University 1999-2019; recent research on the relation between youth and literature)