(EN) Hack Campbell, Message In A Bottle - It's Not Littering, It's Science!, su science20.com, Science 2.0., 26 maggio 2010. URL consultato il 26 maggio 2010.
«[...] but there is something poignant about the randomness of nature coupled with an intentional act of bridging distances, though these days you'll have Greenpeace ramming your ship if you try it - unless it's for science»