Арсов, Р. On the Kinetics of the Biological Processes in Design of Municipal Wastewater Sludge Anaerobic Digestion Units. София: УАСГ, 2002/св. V с. 46-60,.
Арсов, Р. On the Kinetics of the Biological Processes in Design of Municipal Wastewater Sludge Anaerobic Digestion Units. София: УАСГ, 2002/св. V с. 46-60,.
Арсов, Р. (2002/св. V) On the Kinetics of the Biological Processes in Design of Municipal Wastewater Sludge Anaerobic Digestion Units, София: УАСГ с. 46-60,.
Арсов, Р. (2002/св. V). On the Kinetics of the Biological Processes in Design of Municipal Wastewater Sludge Anaerobic Digestion Units. Годишник на Университета по архитектура, строителство и геодезия - УАСГ (с. с. 46-60). София: УАСГ. XL.
Арсов Р. On the Kinetics of the Biological Processes in Design of Municipal Wastewater Sludge Anaerobic Digestion Units. София: УАСГ; 2002/св. V. p. с. 46-60.