Kung, J., de Mier, A., Sun, X., & Yan, C.
(2007).Lattice paths with periodic boundaries. Electronic Notes in Discrete Mathematics.
29(SPEC. ISS.), 59-63.
Spencer, J., & Yan, C. H.
(2003).The halflie problem. Journal of Combinatorial Theory Series A.
103(1), 69-89.
Graham, R. L., Lagarias, J. C., Mallows, C. L., Wilks, A. R., & Yan, C. H.
(2003).Apollonian circle packings: number theory. Journal of Number Theory.
100(1), 1-45.
Lorentz, R., Tringali, S., & Yan, C. H.
(2018).Generalized Gonarov Polynomials. Connections in Discrete Mathematics.
(pp. 56-85).
Cambridge University Press (CUP).