http://general-terms.thesaurus.ekt.gr/vocab EKT-EL EKT Dev EKT Dev 2014-01-22 el 0000-00-00 00:00:00 acquisitions (of materials) 0000-00-00 00:00:00http://general-terms.thesaurus.ekt.gr/vocab?tema=11520http://general-terms.thesaurus.ekt.gr/vocab?tema=11523http://general-terms.thesaurus.ekt.gr/vocab?tema=11524