Gonzalez-Camejo, J., Serna-García, R., Viruela, A., Paches, M., Durán, F., Robles, A., Ruano, MV, Barat, R., Seco, A. (2017) Short and long-term experiments on the effect of sulphide on microalgae cultivation in tertiary sewage treatment. Bioresource Technology 224, 15-22.