| 36 |  | * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005). | 
| 37 |  | * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006). | 
| 38 |  | * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008). | 
| 39 | < | * [4]  Vardeman & Gezelter, in progress (2009). | 
| 39 | > | * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010). | 
| 40 | > | * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011). | 
| 41 |  | */ | 
| 42 |  |  | 
| 43 |  | #ifndef SELECTION_TOKEN_HPP | 
| 142 |  | const static int none         = expression | 10; | 
| 143 |  | const static int name         = expression | 11; | 
| 144 |  | const static int hull         = expression | dynamic | 12; | 
| 145 | + |  | 
| 146 |  | // miguel 2005 01 01 | 
| 147 |  | // these are used to demark the beginning and end of expressions | 
| 148 |  | // they do not exist in the source code, but are emitted by the |