00513nas a2200133   4500008004100000245007300041210006900114260003300183653000800216100001600224700001800240700001500258856010600273       2009                        eng d00aVisualizing the intellectual structure with paper-reference matrices0 aVisualizing the intellectual structure with paperreference matri  aAtlantic City, NJ, USAc200910aBIS1 aZhang, Jian1 aChen, Chaomei1 aLi, Jiexun  u/biblio/visualizing-intellectual-structure-paper-reference-matrices-1