Nutrient salt removal by a water lettuce and large-scale growing experiments
ウォーターレタスによる栄養塩除去と大規模生育実験

Toru AOI, Nobuhiro OTSUKI, Hiroshi USUDA
1997 Journal of Environmental Conservation Engineering  
doi:10.5956/jriet.26.714 fatcat:kqjbe2y7sfarnh77umaonj4vu4