author: Grontas, Panagiotis_or_Pagourtzis, Aristeidis_or_Tentolouris%2C Nikolaos_or_Kokkinos%2C Alexandros_or_%CE%9C%CE%B9%CF%87%CE%B1%CE%BB%CF%8C%CF%80%CE%BF%CF%85%CE%BB%CE%BF%CF%82%2C %CE%91%CE%BD%CE%B4%CF%81%CE%AD%CE%B1%CF%82__elsubjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCESlang: el