A̲z̲o̲l̲l̲a̲ n̲i̲l̲o̲t̲i̲c̲a̲ de Caisne

by Georg Mettenius

Über Azolla

by Eduard Strasburger

Azolla

by Karine Bernadou

Azolla utilization

by International Rice Research Institute

Azolla biofertilizer for sustainable rice production

by S. Kannaiyan, S. Kanniyan

Technological perspectives of azolla and cyanobacterial biof...

by Workshop on Azolla and Cyanobacterial Biofertilizers Technology for Rice (2001 Coimbatore, India)

Azolla agronomy

Ueber Azolla

by Eduard Strasburger

Azolla in West Africa.

by C. van Hove

Fotosintez i azotfiksat͡s︡ii͡a︡ v simbioticheskoĭ sisteme A...

by Huu Thuoc Nguyen

Azolla en Afrique de l'Ouest =

by C. van Hove

Azolla nilotica DeCaisne

by Georg Mettenius

The International bibliography on Azolla

by Mila Medina Ramos

Modern taxonomy of Azolla

by Benito Ching Tan

L'Azolla filiculöides Lam

by Charles Queva

International bibliography on Azolla

by Dionisia T. Capaya

On Azolla and Salvinia

by William Griffith

Om Azolla's prothallium och embryo

by Sven Berggren

Differentiation of sporocarps in Azolla

by Wanda M. Pfeiffer

Azolla As a Green Manure