A 'retraction' method for terrain model acquisition. - Nageswara S. V. Rao; Neal W. Stoltzfus; S. Sitharama Iyengar (ICRA, 1988)

A 'retraction' method for learned navigation in unknown terrains for a circular robot. - Nageswara S. V. Rao; Neal W. Stoltzfus; S. Sitharama Iyengar (IEEE Trans. Robotics Autom., 1991)

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)