Question: Did both Philip Larkin and Hans Fallada have pseudonyms?

full_context: Document 1: Relationships that influenced Philip Larkin: Throughout the life of the poet Philip Larkin a number of women had important roles which were notable influences on his poetry. Since Larkin's death biographers have highlighted the importance of female relationships on Larkin: when Andrew Motion's biography was serialised in the Independent in 1993, the second instalment of extracts was dedicated to the topic. In 1999 Ben Brown's play "Larkin with Women" dramatised Larkin's relationships with three of his lovers, and more recently writers such as Martin Amis have continued to comment on this subject.
Document 2: Every Man Dies Alone: Every Man Dies Alone or Alone in Berlin (German: "Jeder stirbt für sich allein" ) is a 1947 novel by German author Hans Fallada. It is based on the true story of a working class husband and wife who, acting alone, became part of the German Resistance. They were eventually discovered, denounced, arrested, tried and executed. Fallada's book was one of the first anti-Nazi novels to be published by a German after World War II.
Document 3: Hans Fallada: Hans Fallada (born Rudolf Wilhelm Friedrich Ditzen; 21 July 18935 February 1947) was a German writer of the first half of the 20th century. Some of his better known novels include "Little Man, What Now?" (1932) and "Every Man Dies Alone" (1947). His works belong predominantly to the New Objectivity literary style, with precise details and journalistic veneration of the facts. Fallada's pseudonym derives from a combination of characters found in the Grimm's Fairy Tales: the protagonist of "Hans in Luck" (KHM 83) and a horse named Falada in "The Goose Girl".
Document 4: Selected Letters of Philip Larkin, 1940–1985: The Selected Letters of Philip Larkin, 1940–1985 is a volume of Philip Larkin's personal correspondence, compiled by Anthony Thwaite, one of Larkin's literary executors, and published in 1992 by Faber and Faber, seven years after Larkin's death. It was followed a year later by "Philip Larkin: A Writer's Life", Larkin's official biography, written by Andrew Motion, Larkin's other literary executor.
Document 5: Little Man, What Now? (1933 film): Little Man, What Now? (German:Kleiner Mann - was nun?) is a 1933 German drama film directed by Fritz Wendhausen and starring Hermann Thimig, Hertha Thiele and Viktor de Kowa. It is an adaptation of the novel of the same name by Hans Fallada. It was well received by contemporary critics, many of whom considered it the best German film of 1933. A separate American film adaptation of Fallada's novel, "Little Man, What Now?", was released in 1934.
Document 6: The Whitsun Weddings (poem): "The Whitsun Weddings", read here by Larkin himself, is one of the best known poems by British poet Philip Larkin. It was written and rewritten and finally published in the 1964 collection of poems, also called The Whitsun Weddings. It is one of three poems that Larkin wrote about train journeys.
Document 7: Hermann Hesse: Hermann Karl Hesse (] ; 2 July 1877 – 9 August 1962) was a German-born poet, novelist, and painter. His best-known works include "Demian", "Steppenwolf", "Siddhartha", and "The Glass Bead Game", each of which explores an individual's search for authenticity, self-knowledge and spirituality. In 1946, he received the Nobel Prize in Literature.
Document 8: Little Man, What Now? (novel): Little Man, What Now? (German title: "Kleiner Mann, was nun?") is a novel by Hans Fallada, which was first published in 1932, the year before Adolf Hitler's rise to power. The book was an immediate success in Germany, where today it is considered to be a modern classic, given its intense descriptions of the last days of the Weimar Republic. The book was also the breakthrough for Fallada as a writer of fiction.
Document 9: Hans Fallada Prize: The Hans Fallada Prize is a German literary prize given by the city of Neumünster in the German state of Schleswig-Holstein. Since 1981 it has been normally awarded every two years to a young author from the German-speaking world. It is named in honor of Hans Fallada, a famous 20th-century German author known for addressing political and social problems of his day in fiction.
Document 10: The Letters of Kingsley Amis: The Letters of Kingsley Amis (2001) was assembled and edited by the American literary critic Zachary Leader. It is a collection of more than 800 letters from Amis to many different friends and professional acquaintances from 1941 until shortly before his death in 1995. About one quarter of the letters selected were addressed to Amis's close friend, the poet Philip Larkin.
Document 11: Everyone Dies Alone: Everyone Dies Alone (Original title: Jeder stirbt für sich allein) is a German film produced and released in West Germany in 1975, adapted from the Hans Fallada novel, "Every Man Dies Alone". It was released in English in 1976. The book was based on the story of two ordinary Germans, Otto and Elise Hampel, who committed acts of civil disobedience against the Third Reich, were caught and sentenced to death.
Document 12: The Less Deceived: The Less Deceived, first published in 1955, was Philip Larkin's first mature collection of poetry, having been preceded by the derivative "North Ship" (1945) from The Fortune Press and a privately printed collection, a small pamphlet titled "XX Poems", which Larkin mailed to literary critics and authors. Unfortunately, Larkin was unaware that postal rates had gone up, and most recipients, when asked to pay the difference for delivery of a pamphlet by a little-known writer, turned them away, only around 100 copies were printed.
Document 13: Philip Larkin: Philip Arthur Larkin (9 August 1922 – 2 December 1985) was an English poet, novelist and librarian. His first book of poetry, "The North Ship", was published in 1945, followed by two novels, "Jill" (1946) and "A Girl in Winter" (1947), and he came to prominence in 1955 with the publication of his second collection of poems, "The Less Deceived", followed by "The Whitsun Weddings" (1964) and "High Windows" (1974). He contributed to "The Daily Telegraph" as its jazz critic from 1961 to 1971, articles gathered in "All What Jazz: A Record Diary 1961–71" (1985), and he edited "The Oxford Book of Twentieth Century English Verse" (1973). His many honours include the Queen's Gold Medal for Poetry. He was offered, but declined, the position of Poet Laureate in 1984, following the death of Sir John Betjeman.
Document 14: Alfred Döblin: Bruno Alfred Döblin (10 August 1878 – 26 June 1957) was a German novelist, essayist, and doctor, best known for his novel "Berlin Alexanderplatz" (1929). A prolific writer whose œuvre spans more than half a century and a wide variety of literary movements and styles, Döblin is one of the most important figures of German literary modernism. His complete works comprise over a dozen novels ranging in genre from historical novels to science fiction to novels about the modern metropolis; several dramas, radio plays, and screenplays; a true crime story; a travel account; two book-length philosophical treatises; scores of essays on politics, religion, art, and society; and numerous letters—his complete works, republished by Deutscher Taschenbuch Verlag and Fischer Verlag, span more than thirty volumes. His first published novel, "Die drei Sprünge des Wang-lung" ("The Three Leaps of Wang Lun"), appeared in 1915 and his final novel, "Hamlet oder Die lange Nacht nimmt ein Ende" ("Tales of a Long Night") was published in 1956, one year before his death.
Document 15: Larkin at Sixty: Larkin at Sixty (1982) is a collection of original essays and poems published to celebrate the sixtieth birthday of the English poet Philip Larkin. It was edited and introduced by Anthony Thwaite and published by Larkin's publishers, Faber and Faber. A poetic dramatisation of the launch of the book was written by Russell Davies.
ground_truth: no