"The Last Question" is a science fiction short story by American writer Isaac Asimov.
 It first appeared in the November 1956 issue of "Science Fiction Quarterly" and was anthologized in the collections "Nine Tomorrows" (1959), "The Best of Isaac Asimov" (1973), "Robot Dreams" (1986), the retrospective "Opus 100" (1969), and in "Isaac Asimov: The Complete Stories, Vol.
 1" (1990).
 It was Asimov's favorite short story of his own authorship, and is one of a loosely connected series of stories concerning a fictional computer called Multivac.
 The story overlaps science fiction, theology, and philosophy.
Robert Musil (] or [ˈmuːsɪl] ; 6 November 1880 – 15 April 1942) was an Austrian philosophical writer.
 His unfinished novel "The Man Without Qualities" (German: "Der Mann ohne Eigenschaften" ) is generally considered to be one of the most important and influential modernist novels.
Isaac Asimov's Magical Worlds of Fantasy is a series of twelve themed paperback fantasy and science fiction anthologies edited by Isaac Asimov, Martin H. Greenberg and Charles G. Waugh, a companion set to the ten volume "Isaac Asimov's Wonderful Worlds of Science Fiction", produced by the same editors.
 It was published by Signet/New American Library from 1983 to 1991.
 Volumes 1 and 2 were also issued in hardcover in an omnibus collection titled "Isaac Asimov's Magical Worlds of Fantasy: Witches & Wizards".
"Anniversary" is a science fiction short story by American writer Isaac Asimov.
 It was first published in the March 1959 issue of "Amazing Stories" and subsequently appeared in the collections "Asimov's Mysteries" (1968) and "The Best of Isaac Asimov" (1973).
 The story was written to mark the twentieth anniversary of Asimov's first published story, "Marooned off Vesta", in the March 1939 issue of "Amazing".
 The story is also part of a loosely connected series of stories by Asimov about the supercomputer Multivac.
Isaac Asimov's Robot City is a series of novels written by various authors and loosely connected to Isaac Asimov's "Robot" series.
 It takes place between "The Robots of Dawn" and "Robots and Empire".
 Each volume is complete in itself, but they form a continuing series.
 The novels were written in response to a writing challenge issued by Asimov to write a series involving the Three Laws of Robotics, which brought about a collaboration of several authors.
 Asimov provided outlines for stories which filled in the gap between Asimov's own robot stories and his "Foundation" series, explaining the disappearance of the robots prior to the establishment of the galactic empire. "
Isaac Asimov's Robots and Aliens" followed in this series, with the same protagonists and many other characters.
 The common theme of all books of both series is the interaction between the characters and autonomous cities run and populated by robots (the "robot cities" of the series title).
 Robot City was also released as a mystery game for the PC in 1995.
 The player takes the role of Derec.
Wizards is an anthology of themed fantasy and science fiction short stories on the subject of wizards edited by Isaac Asimov, Martin H. Greenberg and Charles G. Waugh.
 The first volume in their Isaac Asimov's Magical Worlds of Fantasy series, it was first published in paperback by Signet/New American Library in October 1983.
 It was later gathered together with "Witches", the second book in the series, into the omnibus hardcover collection "Isaac Asimov's Magical Worlds of Fantasy: Witches & Wizards" (1985).
"Marooned off Vesta" is a science fiction short story by American writer Isaac Asimov.
 It was the third story written by him, and the first to be published.
 Written in July 1938 when Asimov was 18, it was rejected by "Astounding Science Fiction" in August, then accepted in October by "Amazing Stories", appearing in the March 1939 issue.
 Asimov first included it in his 1968 story collection "Asimov's Mysteries", and subsequently in the 1973 collection "The Best of Isaac Asimov".
Adolf Frisé (29 May 1910 in Euskirchen, North Rhine-Westphalia − 2 May 2003 in Frankfurt am Main) was a German journalist, author and editor.
 He is best known as the editor of the literary works of the Austrian philosophical writer Robert Musil.
Isaac Asimov's Robots and Aliens is a series of novels written by various authors and loosely connected to Isaac Asimov's "Robot" series.
 Each volume is complete in itself, but they form a continuing series.
 The series follows the action of the novels of the "Isaac Asimov's Robot City" series, with the same protagonists Derec and Ariel, and many other characters.
 The plot deals with the Three Laws and encounters between robots and different varieties of alien life.
Isaac Asimov ( ; born Isaak Ozimov; January 2, 1920 – April 6, 1992) was a Russian-American writer and professor of biochemistry at Boston University.
 He was known for his works of science fiction and popular science.
 Asimov was a prolific writer, and wrote or edited more than 500 books and an estimated 90,000 letters and postcards. His books have been published in 9 of the 10 major categories of the Dewey Decimal Classification.

Question: Of the two writers, Isaac Asimov or Robert Musil, is not an Austrian philosophical writer?
Answer: Isaac Asimov