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- [3] Changes in the rubber industry during the past fifty years INDUSTRIAL AND ENGINEERING CHEMISTRY, 1926, 18 : 902 - 905
- [5] Water supply and sewerage during the past fifty years INDUSTRIAL AND ENGINEERING CHEMISTRY, 1926, 18 : 899 - 901
- [9] DEVELOPMENTS IN OCULAR MICROBIOLOGY IN ISRAEL DURING PAST FIFTY YEARS ISRAEL JOURNAL OF EXPERIMENTAL MEDICINE, 1963, 11 (02): : 72 - &
- [10] Regime Shifts in the Huanghe Freshwater Discharge during the Past Fifty Years 2009 3RD INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING, VOLS 1-11, 2009, : 6039 - +