• • {{cite journal|title=The Midterm Coefficient of the Cyclotomic Polynomial F_{pqr}(x)|journal=
The American Mathematical Monthly|volume=71|issue=7|date=September 1964|pages=769–770|doi=10.2307/2310894|jstor=2310894}} • {{cite journal|title=Magnitude of the Coefficients of the Cyclotomic Polynomial F_{pqr}(x)|journal=
The American Mathematical Monthly|volume=75|issue=4|date=April 1968|pages=370–372|doi=10.2307/2313416 |jstor=2313416}} • {{cite journal|title=Magnitude of the Coefficients of the Cyclotomic Polynomial F_{pqr}(x), II|journal=
Duke Mathematical Journal|date=September 1971|volume=38|issue=3|pages=591–594|doi=10.1215/S0012-7094-71-03873-7}} • {{cite journal|title=Coefficients of the Cyclotomic Polynomial F_{3qr}(x)|journal=
The Fibonacci Quarterly|date=August 1978|volume=16|issue=4|pages=302–306|url=https://www.fq.math.ca/Scanned/16-4/beiter.pdf}} ==References==