| Auteur(s) | Alexander, K.N.A. |
| Jaar | 2003 |
| Titel | A review of the invertebrates associated with lowland calcareous grassland. English Nature. |
| Auteur(s) | Alexander, K.N.A. |
| Jaar | 2003 |
| Titel | A review of the invertebrates associated with lowland calcareous grassland. English Nature. |