Nonstandard Central Limit Theorems for Markov Chains. - Bernardo B. de Andrade; Charles J. Geyer (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2011)

Ridge Fusion in Statistical Learning. - Bradley S. Price; Charles J. Geyer; Adam J. Rothman (CoRR, 2013)

Near equivalence on metric spaces and a nonstandard central limit theorem. - Charles J. Geyer; Bernardo B. de Andrade (J. Log. Anal., 2015)

Surreal Time and Ultratasks. - Haidar Al-Dhalimy; Charles J. Geyer (Rev. Symb. Log., 2016)