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Gh. Juncu
Catedra Inginerie Chimica
Politehnica University BucharestRomania
C. Popa
Department of Mathematics,
Ovidius University of ConstantaConstanta, Romania
Gh. Sarbu
Department of Oceanography, Coastal and Marine Engineering, National Institute for Marine Research and Development “Grigore Antipa”,
Constanta, Romania