| Why whales, why now? |
| Brakes, P. (2011). Why whales, why now?, in: Brakes, P. et al. (Ed.) (2011). Whales and dolphins: cognition, culture, conservation and human perceptions. pp. 1-5 |
| In: Brakes, P.; Simmonds, M.P. (Ed.) (2011). Whales and dolphins: cognition, culture, conservation and human perceptions Earthscan: London. ISBN 978-1-84971-225-5. 220 pp., meer |
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