Question: Which magazine is published by with an independent volunteer editor, Doctor Who Magazine or National Contest Journal?

Context paragraphs:
National Contest Journal: The National Contest Journal (also referred to by the acronym NCJ) is a bimonthly magazine published by the American Radio Relay League, with an independent volunteer editor.  The magazine covers topics related to amateur radio contesting.  The magazine is published in English and draws its subscription base primarily from the United States of America and Canada.

Marianna Efstratiou: Maria-Anastasia (Marianna) Efstratiou (Greek: Μαριάννα Ευστρατίου ) (born 17 April 1955 in Athens) is a Greek singer, connected on several occasions with the Eurovision Song Contest.  In 1987, she appeared as a backing singer for the duo Bang.  Efstratiou won the Greek national song contest in 1989, overcoming Greek superstar Anna Vissi, and represented Greece in Lausanne with "To Diko Sou Asteri".  The song was placed ninth.  In 1996, ERT selected her to represent Greece again, this time with the song "Emis forame to himona anixiatika", but the song could only manage 14th place in Oslo.  Efstratiou sang a number of songs in the semi-finals of the Greek national contest in 1998, none of which won.  She has worked with Mimmis Plessas and she also starred on stage on several occasions.  She has published two records and a promo cd single.  On her debut album there's her cover of "Twist in My Sobriety", originally sung by Tanita Tikaram.  She has also participated in the theatrical play "Pornography" by Manos Hatzidakis.  Currently, she is the lead singer of the jazz ensemble Nova Mood.

National History Day: National History Day is non-profit organization based in College Park, Maryland that operates an annual project-based contest for students in grades 6-12.  It has affiliates in all fifty states, Washington, D.C., Puerto Rico, Guam, American Samoa, South Korea, China, South Asia, and Central America.  It started as a local program in Cleveland, Ohio, headed by Dr. David Van Tassell, a history professor at Case Western Reserve University.  It grew from 129 students in 1974 to over 500,000 students in 48 states in 1991, and 700,000 students and 40,000 teachers in 2001.  Today more than half a million students enter through local contests.  They construct entries as an individual or a group in one of five categories: Documentary, Exhibit, Paper, Performance or Website.  Students then compete in a series of regional contests with top entries advancing to state/affiliate contests.  The top two entries in each category and division are invited to compete at the National Contest.

Croatia in the Eurovision Song Contest 2001: Croatia selected its entry for the 2001 Eurovision Song Contest through the "Dora 2001" national contest, which was organised by the Croatian national broadcaster Hrvatska radiotelevizija (HRT) and held on 4 March 2001 in Zagreb.  The winner was Vanna with the English-language song "Strings of My Heart".

Doctor Who Magazine: Doctor Who Magazine (abbreviated as DWM) is a magazine devoted to the long-running British science fiction television series "Doctor Who".  Its current editor is Marcus Hearn, who took over from the magazine's longest-serving editor, Tom Spilsbury, in July 2017.  It is currently recognised by "Guinness World Records" as the longest running TV tie-in magazine.

EMA (Slovenia): EMA (Evrovizijska Melodija; English: "Eurovision Melody") is the national contest in Slovenia to select the country's entry since 1996 to the Eurovision Song Contest.  The contest has been held since the country's debut in the Eurovision Song Contest, and has been held every year since, except for on two occasions (1994 and 2000) when Slovenia did not compete at Eurovision.

Samanta Schweblin: Samanta Schweblin was born in Buenos Aires in 1978.  In 2001 she was granted her first award by the Fondo Nacional de las Artes (national Fund of the Arts).  In that same year, her first book "El núcleo del Disturbio" (Planeta, 2002) garnered her the first prize of the Concurso Nacional Haroldo Conti.  (National Contest Haroldo Conti).  In 2008 she obtained the prize "Casa de las Americas" for her storybook "La Furia de las pestes", soon to be published.  She was included in the anthologies "Quand elles se glissent dans la peau d'un homme" (Éditions Michalon, Francia.  2007), "Una terraza propia" (Norma, 2006), "La joven guardia" (Norma, 2005), "Cuentos Argentinos" (Siruela, España 2004), among others.  In 2010 she was chosen by the Granta magazine as one of the 22 best writers in Spanish under 35 years.  Some of her stories have been translated into English, French, Serbian, Swedish, Dutch, and Danish, and published in magazines and other cultural forums.  An English translation of her story "Killing a Dog" was published in the Summer 2009 issue of the London-based quarterly newspaper The Drawbridge.

Alfred Haag: Alfred Haag (15 December 1904, Schwäbisch Gmünd, Württemberg – 8 August 1982) was a member of the Youth movement of the Communist Party of Germany (KPD) in the small Württemberg town of Schwäbisch Gmünd in the 1920s, he married another communist; Lina Haag in 1927.  He was a volunteer editor for the Sueddeutsche Zeitung workers in Stuttgart, later he was elected a member of the regional parliament for the KPD until Hitler's rise to power in 1933.  Both Alfred and Lina were soon arrested, and both spent many years in prisons and concentration camps.

NARAM: NARAM is the Annual Meet of the National Association of Rocketry (NAR).  It is the national contest culminating the rocket contest year, and also includes fun, or "sport," flying of model rockets for those who don't wish to compete.  The NAR is the governing body for the sport/hobby of model rocketry in the United States.  NARAM is traditionally held the first week of August.

Rube Goldberg Machine Contest: The Rube Goldberg Machine Contest is a contest in which college or high school students build devices to complete a simple task in a minimum of twenty steps in the style of American cartoonist Rube Goldberg.  Local contests are held throughout the United States, and local winners are eligible to compete in the national contest.

Supporting paragraphs: Doctor Who Magazine National Contest Journal
Answer: National Contest Journal