Riti-Mihoc, Emilian-Narcis, et al. “MATHEMATIC-PHYSICAL MODEL OF DIMENSIONING SYSTEM IN THE PROPAGATION OF MICROWAVE "WAVEGUIDE-SLUDGE“ FROM WASTEWATER TREATMENT PLANTS”. European Scientific Journal, ESJ, vol. 9, no. 21, July 2013, doi:10.19044/esj.2013.v9n21p%p.