Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 1-2, pages 6-7

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 1-2, pages 8-14

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 1-2, pages 14-20

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 1-2, pages 20-26

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 1-2, pages 27-33

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 3, pages 69-70

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 3, pages 70-72

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 3, pages 72-73

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 3, pages 73-77

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 3, pages 79-81

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 3, pages 83-88

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 4, pages 98-99

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 4, pages 99-101

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 4, pages 102-110

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 4, pages 110-113

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 4, pages 114-123

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 4, pages 126-127

Published in Carnivorous plant newsletter, in 1991, in volume 20, issue 1-2, pages 4-5