Commutative regular languages. - C. P. Rupert (SIGACT News, 1991)

Which Kleene Semigroups are Finite? - C. P. Rupert (Theor. Comput. Sci., 1991)

Crossability of cancellative Kleene semigroups. - C. P. Rupert (RAIRO Theor. Informatics Appl., 1992)

Problem 10915. - C. P. Rupert (Am. Math. Mon., 2002)

Problem 10971. - C. P. Rupert (Am. Math. Mon., 2002)

Recounting the Rationals, Continued: 10906. - Donald E. Knuth; C. P. Rupert; Alex Smith; Richard Stong (Am. Math. Mon., 2003)

A Sequence of Integer Polynomials: 10915. - C. P. Rupert; Richard Stong (Am. Math. Mon., 2003)

The First Fibonacci Number Divisible by a Prime p: 10971. - C. P. Rupert; Richard Stong (Am. Math. Mon., 2004)

An analysis of polynomial chaos approximations for modeling single-fluid-phase flow in porous medium systems. - C. P. Rupert; Cass T. Miller (J. Comput. Phys., 2007)