Black-, gray-, and white-box modeling of biogas production rate from a real-scale anaerobic sludge digestion system in a biological and advanced biological treatment plant. - Kaan Yetilmezsoy; Kevser Karakaya; Majid Bahramian; Sabah Ahmed Abdul-Wahab; Bülent Ilhan Goncaloglu (Neural Comput. Appl., 2021)