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- [23] PAPERS PRESENTED AT THE 5TH INTERNATIONAL-CONFERENCE ON PHOTOCHEMICAL CONVERSION AND STORAGE OF SOLAR-ENERGY OSAKA, JAPAN, AUGUST, 1984 - PREFACE - AN OVERVIEW JOURNAL OF PHOTOCHEMISTRY, 1985, 29 (1-2): : 1 - 4
- [27] RECYCLING OF MATERIALS - SELECTED PAPERS FROM THE 5TH INTERNATIONAL RECYCLING CONGRESS HELD IN BERLIN, 29-31 OCTOBER, 1986 - PREFACE CONSERVATION & RECYCLING, 1987, 10 (2-3): : 49 - 49