Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 1, pages 8-23

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 1, pages 23-25

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 2, pages 39-40

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 2, pages 41-44

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 2, pages 51-52

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 2, pages 52-54

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 3, pages 62-63

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 3, pages 65-67

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 3, pages 69-73

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 4, pages 82-84

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 4, pages 85-87

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 4, pages 88-95

Published in Carnivorous plant newsletter, in 1983, in volume 12, issue 4, pages 96-98