Cultivation of Spirulina platensis by continuous process using ammonium chloride as nitrogen source - Sassano, Carlos Eduardo Nascimento; Gioielli, Luiz Antonio; Almeida, Kátia Aparecida de; Sato, Sunao; Perego, Patrizia; Converti, Attilio; Carvalho, João Carlos Monteiro de (Biomass and Bioenergy, 2007)