Direct conversion of Spirulina to ethanol without pretreatment or enzymatic hydrolysis processes - Aikawa, Shimpei; Joseph, Ancy; Yamada, Ryosuke; Izumi, Yoshihiro; Yamagishi, Takahiro; Matsuda, Fumio; Kawai, Hiroshi; Chang, Jo-Shu; Hasunuma, Tomohisa; Kondo, Akihiko (Energy & environmental science, 2013)