Shaofang Hong and Chunlin Wang, Criterion for the integrality of hypergeometric power series with parameters from quadratic fields, arxiv:1609.09319. 

Shiyi Tang and Chunlin Wang, Rational-transcendental dichotomy of power series with a restriction on coefficients, Monatshefte fur Mathematik, 186 (2018), 355-367.

Chunlin Wang and Kevin Zhao, On zero-sum subsequences of length not exceeding a given number, J. Number Theory, 176 (2017), 365-374.

Shaofang Hong and Chunlin Wang, On the integrality of elementary symmetric functions of reciprocals of elements of arithmetic progressions, Acta Mathematica Hungarica, 144 (2014), 196-211.

Chunlin Wang and Shaofang Hong, On the integrality of elementary symmetric functions of 1,1/3,...,1/(2n-1), Mathematica Slovaca, 65 (2015), 957-962.