Published in Nautilus, in 1976, in volume 90, pages 41-46

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 46-49

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 49-52

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 63-64

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 70-73

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 86-88

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 94-98

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 99-100

Created: 2016-08-10, modified: 2016-08-10

Published in Nautilus, in 1976, in volume 90, pages 125

Created: 2016-08-10, modified: 2016-08-10

Published in The Nautilus, in 1976, in volume 90, issue 1, pages 15-23

Created: 2016-11-05, modified: 2016-11-05

Published in The Nautilus, in 1976, in volume 90, issue 1, pages 25-36

Created: 2016-11-05, modified: 2016-11-05

Published in Nautilus, in 1976, in volume 90, issue 4, pages 127-138

Created: 2016-08-10, modified: 2017-09-29