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https://blog.rubberstudy.com/2019/07/30/a-view-from-the-past-to-the-present-and-into-the-future-on-the-occasion-of-the-75th-anniversary-of-the-international-rubber-study-group-irsg/
A View from the Past to the Present and into the Future on the occasion of the 75th Anniversary of the International Rubber Study Group (IRSG)