Published in Phytologia, in 1957, in volume 5, pages 465-507

Published in Phytologia, in 1957, in volume 6, pages 12-13

Published in Phytologia, in 1957, in volume 6, pages 13-64

Published in Phytologia, in 1957, in volume 6, issue 1, pages 1

Published in PHYTOLOGIA, in 1957, in volume 6, issue 2, pages 65-67

Published in Phytologia, in 1957, in volume 6, issue 2, pages 70-128