Question: Where was one of the founder's of Gruppe Olten's novella first published in English?
Context: Selma Urfer (born 30 March 1928 in Bern, Switzerland; died 2 May 2013 in Munich) was a Swiss author, translator and actress.  She graduated from the Zurich School of Drama in 1948.  In addition to acting and studio recordings, she published numerous short stories, radio and TV plays, translations from French/English and two novels.  She joined the Gruppe Olten in 1970.  She was married to the German actor Robert Graf, had three children, including German film director , and lived in Munich. "The Mathematics of Magic" is a fantasy novella by American writers L. Sprague de Camp and Fletcher Pratt, the second story in their Harold Shea series.  It was first published in the August 1940 issue of the fantasy pulp magazine "Unknown".  It first appeared in book form, together with the preceding novella, "The Roaring Trumpet", in the collection "The Incomplete Enchanter", issued in hardcover by Henry Holt and Company in 1941, and in paperback by Pyramid Books in 1960.  It has since been reprinted in various collections by numerous other publishers, including "The Compleat Enchanter" (1975), "The Incompleat Enchanter" (1979), "The Complete Compleat Enchanter" (1989), and "" (2007).  It has been translated into Dutch and Italian.  In 2016, the story was shortlisted for the Retro Hugo Award for Best Novella. Tarzan and the Castaways is a collection of stories by American writer Edgar Rice Burroughs, the twenty-fourth in his series of books about the title character Tarzan.  In addition to the title novella, it includes two Tarzan short stories.  Of the three pieces, "Tarzan and the Jungle Murders", was written first, in January 1939.  It was first published in the magazine "Thrilling Adventures" in the issue for June 1940.  "Tarzan and the Champion" was written in July 1939, and first published in "Blue Book Magazine" in the issue for April 1940.  "The Quest of Tarzan" was begun in November 1940 and first published in the magazine "Argosy Weekly" as a three-part serial in the issues for August 23, August 30, and September 6, 1941.  The three stories were gathered together and first published in book form in hardcover by Canaveral Press in 1965.  At that time "The Quest of Tarzan" was retitled "Tarzan and the Castaways" to avoid confusion with the earlier Tarzan novel "Tarzan's Quest".  The first paperback edition was issued by Ballantine Books in July 1965. The Snow Goose: A Story of Dunkirk is a short novella by the American author Paul Gallico.  It was first published in 1940 as a short story in "The Saturday Evening Post", then he expanded it to create a short novella which was first published on April 7, 1941. The Free Workers' Union of Germany (German: "" ; FAUD) was an anarcho-syndicalist trade union in Germany.  It stemmed from the Free Association of German Trade Unions (FDVG) which combined with the Ruhr region's Freie Arbeiter Union on September 15, 1919.  The FAUD was involved in the revolution in Germany from 1918–1923, and continued to be involved in the German labor movement after the FAUD began to decline in 1923.  After 1921, the FAUD added an "AS" to their name, signifying a full transition from simple syndicalism to anarcho-syndicalism.  This also led to further difficulties between the intellectual elites of the FAUD (AS), such as Rudolf Rocker, and the rank and file workers, mostly in the Ruhr, who were more worried about "bread and butter" issues than anarchist political activities.  These workers, the majority of the FAUD-(AS) members, formed the :Gelsenkircherichtung (Gelsenkirche tendency) within the movement, and given the movements federalist structure, began to drift away from the FAUD-(AS) intellectually and organizationally.  Eventually, those workers who had joined during the revolution left the movement and the remaining FAUD-(AS) members came from the FDVG's original constituencies of the building trades and specialized textile workers.  The Nazis suppressed the FAUD in January 1933 after coming to power.  However, many of its members continued to do political work illegally and organized resistance against the Nazi regime, both in Germany and elsewhere (see: Gruppe DAS and the revolution in Spain, 1936–1939).  The International Workers Association, of which the FAUD was a member, was founded upon the initiative of the German organization in 1922.  The Free Workers' Union (FAU), which was founded in 1977, sees itself in the tradition of the FAUD.  At its peak, the FAUD had 150,000 members.  The primary organ of the FAUD was the newspaper "Der Syndikalist", which was first published in December 1918, and continued until the groups suppression by the Nazis. Triton is a collection of fantasy short stories by author L. Ron Hubbard.  It was first published in 1949 by Fantasy Publishing Company, Inc. in an edition of 1,200 copies.  The title novella first appeared in the April 1940 issue of the magazine "Unknown" under the title "The Indigestible Triton" and under Hubbard's pseudonym "René Lafayette".  The other story first appeared in the magazine "Fantasy Book". Max Rudolf Frisch (May 15, 1911 – April 4, 1991) was a Swiss playwright and novelist.  Frisch's works focused on problems of identity, individuality, responsibility, morality, and political commitment.  His use of irony is a significant feature of his post-war publications.  Frisch was one of the founders of Gruppe Olten.  He was awarded the Neustadt International Prize for Literature in 1986. Man in the Holocene (1979) is a novella by Swiss author Max Frisch, originally published in German in 1979, and in English in "The New Yorker" on May 19, 1980 (trans.  Geoffrey Skelton).  A distinctive feature of this book’s style is the use of reprinted cutouts which the protagonist, Mr. Geiser, removes from several encyclopedias, the bible and other books.  It contains some autobiographical elements: Frisch at the time of the writing is about the same age as the protagonist, Mr. Geiser, and Frisch also had a house in the Tessin valley where the story is set. The Castle of Iron is the title of a fantasy novella by American authors L. Sprague de Camp and Fletcher Pratt, and of the novel into which it was later expanded by the same authors.  It was the third story (and afterwards the second volume) in their Harold Shea series.  As a 35,000 word novella it was first published in the fantasy magazine "Unknown" for April, 1941.  The revised and expanded novel version was first published in hardcover by Gnome Press in 1950, and in paperback by Pyramid Books in 1962.  The book has been reprinted by a number of other publishers since its first appearance.  An E-book edition was published by Gollancz's SF Gateway imprint on September 29, 2011 as part of a general release of de Camp's works in electronic form.  The novel has been combined with other books in the series in the omnibus editions "The Compleat Enchanter" (1975), "The Complete Compleat Enchanter" (1989) and "" (2007).  It has also been translated into Italian. The Nebula Award for Best Novella is given each year by the Science Fiction and Fantasy Writers of America (SFWA) for science fiction or fantasy novellas.  A work of fiction is defined by the organization as a novella if it is between 17,500 and 40,000 words; awards are also given out for pieces of longer lengths in the novel category, and for shorter lengths in the short story and novelette categories.  To be eligible for Nebula Award consideration a novella must be published in English in the United States.  Works published in English elsewhere in the world are also eligible provided they are released on either a website or in an electronic edition.  The Nebula Award for Best Novella has been awarded annually since 1966.  Novellas published by themselves are eligible for the novel award instead if the author requests them to be considered as such.  The award has been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.
Answer: The New Yorker