U. F. Rodríguez-Zúñiga, C. S. Farinas, V. Bertucci Neto, S. Couri, and S. Crestana, “Aspergillus niger production of cellulases by solid‑state fermentation”, PAB, vol. 46, no. 8, pp. 912–919, Oct. 2011, doi: 10.1590/S1678-3921.pab2011.v46.9673.