In a radio interview with his estranged ex-wife, Tonje Aursland, who plays a part in several of the "Min Kamp" books, Knausgård admitted that he sometimes feels that he has made a "Faustian bargain"—that he has achieved huge success by sacrificing his relationships with friends and members of his family. In October 2010, Aursland presented her perspective on involuntarily becoming a subject of her ex-husband's autobiography in a radio documentary broadcast on NRK. Knausgård's uncle, who is represented as Gunnar in the "Min Kamp" books, has been highly critical of the whole project in the Norwegian press.