Hamal, Khrystyna     Preparatory signal detection for the EU-25 member states under EU burden sharing - advanced monitoring including uncertainty (1990-2004) [Текст] / Khrystyna Hamal, Matthias Jonas // Interim report IR-08-036 / Inter. Inst. for Appl. Systems Analysis. — Laxenburg, 2009. — [47 p.].