Published in Nautilus, in 1992, in volume 106, pages 39-42

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

Published in Nautilus, in 1992, in volume 106, pages 43-49

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

Published in Nautilus, in 1992, in volume 106, pages 50-54

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

Published in Nautilus, in 1992, in volume 106, pages 55-59

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

Published in Nautilus, in 1992, in volume 106, pages 68-71

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

Published in Nautilus, in 1992, in volume 106, pages 76

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

Published in Nautilus, in 1992, in volume 106, pages 77-114

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

Published in Nautilus, in 1992, in volume 106, pages 115-118

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

Published in The Nautilus, in 1992, in volume 106, issue 1, pages 24-38

Created: 2012-09-06, modified: 2012-09-06