A-hypergeometric functions: computational aspects. - Frits Beukers (ISSAC, 2012)

Power Values of Divisor Sums. - Frits Beukers; Florian Luca; Frans Oort (Am. Math. Mon., 2012)

A Counting Proof for When 2 Is a Quadratic Residue. - Karthik Chandrasekhar; Richard Ehrenborg; Frits Beukers (Am. Math. Mon., 2020)