Piedade, M. T. F.; Junk, W. J.; Long, S. P. (1991). "The Productivity of the C4 Grass Echinochloa polystachya on the Amazon Floodplain". Ecology. 72 (4): 1456–1463. Bibcode:1991Ecol...72.1456P. doi:10.2307/1941118. JSTOR1941118.
feedipedia.org
Heuzé, V.; Tran, G.; Giger-Reverdin, S.; Lebas, F. (26 April 2017). "German grass (Echinochloa polystachya)". Feedipedia – Animal Feed Resources Information System. Feedipedia, a programme by INRAE, CIRAD, AFZ and FAO. Retrieved 25 June 2021.
Piedade, M. T. F.; Junk, W. J.; Long, S. P. (1991). "The Productivity of the C4 Grass Echinochloa polystachya on the Amazon Floodplain". Ecology. 72 (4): 1456–1463. Bibcode:1991Ecol...72.1456P. doi:10.2307/1941118. JSTOR1941118.
Piedade, M. T. F.; Junk, W. J.; Long, S. P. (1991). "The Productivity of the C4 Grass Echinochloa polystachya on the Amazon Floodplain". Ecology. 72 (4): 1456–1463. Bibcode:1991Ecol...72.1456P. doi:10.2307/1941118. JSTOR1941118.