Richard Taylor (August 2011), Feature: Crop circles. Coming soon to a field near you(PDF), physicsworld.com, arkivert frå originalen(PDF) 18. mai 2013, henta 10. november 2013, «Today, with the benefit of hindsight, such explanations sound rather contrived. At the height of the debate, though, no less a physicist than Stephen Hawking was prepared to accept some version of Meaden’s theory. When a spate of circles appeared in the countryside near his Cambridge home in 1991, Hawking told a local newspaper that “crop circles are either hoaxes or formed by vortex movement of air”.»
Richard Taylor (August 2011), Feature: Crop circles. Coming soon to a field near you(PDF), physicsworld.com, arkivert frå originalen(PDF) 18. mai 2013, henta 10. november 2013, «Today, with the benefit of hindsight, such explanations sound rather contrived. At the height of the debate, though, no less a physicist than Stephen Hawking was prepared to accept some version of Meaden’s theory. When a spate of circles appeared in the countryside near his Cambridge home in 1991, Hawking told a local newspaper that “crop circles are either hoaxes or formed by vortex movement of air”.»
