Published in Nautilus, in 2012, in volume 126, pages 1-14
Published in Nautilus, in 2012, in volume 126, pages 15-24
Published in Nautilus, in 2012, in volume 126, pages 25-32
Published in Nautilus, in 2012, in volume 126, pages 33-37
Published in Nautilus, in 2012, in volume 126, pages 57-67
Published in Nautilus, in 2012, in volume 126, pages 79-85
Published in Nautilus, in 2012, in volume 126, pages 89-97
Published in Nautilus, in 2012, in volume 126, pages 98-104
Published in Nautilus, in 2012, in volume 126, pages 105-112
Published in Nautilus, in 2012, in volume 126, pages 119-126
Published in Nautilus, in 2012, in volume 126, pages 127-135
Published in Nautilus, in 2012, in volume 126, pages 136-142