q=%28%E7%BE%8E%29+R.+%E5%BA%93%E6%9C%97%28Richard+Courant%29&searchType=standard&isFacet=true&view=standard&searchWay=author&rows=10&sortWay=score&sortOrder=desc&searchWay0=marc&logical0=AND
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(美) R. 库朗(Richard Courant)
