| Closure Properties of Real Number Classes under CBV Functions | 3 | 0.48 | 2005 |
| Ershov's Hierarchy of Real Numbers | 1 | 0.38 | 2003 |
| Monotonically Computable Real Numbers | 9 | 1.12 | 2002 |
| Weakly Computable Real Numbers and Total Computable Real Functions | 15 | 1.55 | 2001 |
| The Alternation Hierarchy for Machines with Sublogarithmic Space is Infinite | 4 | 0.44 | 1994 |
| Multicounter Automata with Sublogarithmic Reversal Bounds | 0 | 0.34 | 1993 |
| The alternation hierarchy for sublogarithmic space is infinite | 18 | 1.05 | 1993 |
