References
| Site | Description |
| Awi-Bremerhaven | Alfred- Wegener -Institute for Polar and Marine Research |
| Ocean Teacher - IOC/UNESCO | The Ocean Teachers program of the Intergovernmental Oceanographic Commission / UNESCO |
| Pangaea | Pangaea - Publishing Network for Geoscientific & Environmental Data |
| Censor | Climate variability and El Niño Southern Oscillation: Implications for natural coastal resources and management |