P. Whittle

A Statistical Investigation of Sunspot Observations with Special Reference to H. ALFVÉN'S Sunspot Model.

P. Whittle, 1954 .

Further studies on the industrial melanic moth Biston betularia (L.) in the northwest of the British Isles

P. Whittle, C. Clarke, P. Sheppard, 1976, Proceedings of the Royal Society of London. Series B. Biological Sciences.