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Results of the IYOECO2019 – International Youth Olympics In Ecology, Serbia – Bor 27.07.2019
Participants of the International Youth Olympics In Ecology – Bor , 27.07.2019. in Serbia
IYOECO 2020 – International Youth Olympics in Ecology
Krajnji rok za prijavljivanje 10.03.2020. – “IYOECO – Međunarodna juniorska ekološka olimpijada”