Published in Nautilus, in 1978, in volume 92, pages 12-14

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

Published in Nautilus, in 1978, in volume 92, pages 19-20

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

Published in Nautilus, in 1978, in volume 92, pages 41-54

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

Published in Nautilus, in 1978, in volume 92, pages 61-67

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

Published in Nautilus, in 1978, in volume 92, pages 85-88

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

Published in Nautilus, in 1978, in volume 92, pages 88-91

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

Published in Nautilus, in 1978, in volume 92, pages 117-123

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

Published in Nautilus, in 1978, in volume 92, pages 123-125

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

Published in Nautilus, in 1978, in volume 92, pages 160-167

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