Isachsen, Gunnar (1934). Norvegia rundt sydpollandet: Norvegia-ekspedisjonen 1930-1931. Publikasjon fra Kommandør Chr. Christensens hvalfangstmuseum i Sandefjord (trykt utg.) nr 15. Oslo: Gyldendal. s. 184. «(Bildetekst:) Fru Ingrid Christensen og konsul Christensen. Thorshavn, 18. febr. 1931.»
Blackadder, Jesse (2013). Chasing the light: a novel of Antarctica. Sydney, NSW: Fourth Estate. ISBN9780732296049. OCLC827111229. «Summary: It's the early 1930s. Antartic open-sea whaling is a booming and territorial race for the mysterious continent is in full swing. Aboard a ship setting sail from Cape Town carrying the Norwegian whaling magnate Lars Christensen are three women: Lillemor Rachlew, who tricked her way on to the ship and will stop at nothing to be the first women to land on Antartica; Mathilde Wegger, a grieving widow who's been forced to join the trip by her calculating parents-in-law; and Lars's wife, Ingrid Christensen, who has longed to travel to Antartica since she was a little girl and has made a daunting bargain with Lars to convince him to take her.»
Blackadder, Jesse (2013). Chasing the light: a novel of Antarctica. Sydney, NSW: Fourth Estate. ISBN9780732296049. OCLC827111229. «Summary: It's the early 1930s. Antartic open-sea whaling is a booming and territorial race for the mysterious continent is in full swing. Aboard a ship setting sail from Cape Town carrying the Norwegian whaling magnate Lars Christensen are three women: Lillemor Rachlew, who tricked her way on to the ship and will stop at nothing to be the first women to land on Antartica; Mathilde Wegger, a grieving widow who's been forced to join the trip by her calculating parents-in-law; and Lars's wife, Ingrid Christensen, who has longed to travel to Antartica since she was a little girl and has made a daunting bargain with Lars to convince him to take her.»
