Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 1, pages 8-9

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 1, pages 10-12

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 1, pages 12-15

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 2, pages 28-29

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 2, pages 29-30

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 2, pages 30-32

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 2, pages 32-33

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 2, pages 33-34

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 3, pages 42-43

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 3, pages 44-46

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 3, pages 46-47

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 3, pages 47-48

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 3, pages 48-50

Published in Carnivorous plant newsletter, in 1976, in volume 5, issue 4, pages 56-57