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- [2] EMC testing above 1 GHz - The bar has been raised EE-EVALUATION ENGINEERING, 1998, 37 (02): : 48 - +
- [9] Routine ultrasound has not been shown to be more accurate than the calendar method BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY, 1998, 105 (10): : 1126 - 1127
- [10] Sea Level has been rising faster for more than 50 Years HYDROLOGIE UND WASSERBEWIRTSCHAFTUNG, 2019, 63 (05): : 289 - 290