1.题名：Technological alternatives in the joining of lightweight aluminum structures
作者：C．Borsellino，G Buffa，L．Fratini，et a1
2. 作者：Sandwell DT, Smith WHF.
标题： Retracking ERS-1 altimeter waveforms for optimal gravity field recovery.
来源：Geophys J Int, 163:79-89 2005.
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