Christoph Csallner Marcus Handte Othmar Lehmann John T. Stasko FundExplorer: Supporting the Diversification of Mutual Fund Portfolios Using Context Treemaps. 2003 conf/infovis/2003 INFOVIS http://csdl.computer.org/comp/proceedings/infovis/2003/2055/00/20550026abs.htm db/conf/infovis/infovis2003.html#CsallnerHLS03