Published in Nautilus, in 1984, in volume 98, pages 28-30

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1984, in volume 98, pages 31-36

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1984, in volume 98, pages 85-97

Created: 2012-03-12, modified: 2012-05-27

Published in Nautilus, in 1984, in volume 98, pages 99-101

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1984, in volume 98, pages 121-123

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1984, in volume 98, pages 126-128

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1984, in volume 98, pages 145-147

Created: 2012-03-12, modified: 2012-03-12