Off-Center Reflections: Caustics and Chaos. - Thomas Kwok-keung Au; Xiao-Song Lin (Exp. Math., 2001)

The Jones polynomial and graphs on surfaces. - Oliver T. Dasbach; David Futer; Efstratia Kalfagianni; Xiao-Song Lin; Neal W. Stoltzfus (J. Comb. Theory B, 2008)