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[kikiki88]

http://www.sciencedirect.com/science...66708714001882
http://www.sciencedirect.com/science...66708714001948
http://www.sciencedirect.com/science...66708714001900
http://www.sciencedirect.com/science...66708714002036
http://www.sciencedirect.com/science...66708714002000
http://www.sciencedirect.com/science...66708714002048
http://www.sciencedirect.com/science...66708714002048
http://www.sciencedirect.com/science...66708714001985
http://www.sciencedirect.com/science...66708714001997
http://www.sciencedirect.com/science...66708714001936