<http://webisa.webdatacommons.org/prov/317689251>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/188048030> .
<http://webisa.webdatacommons.org/188048030>	<http://www.w3.org/ns/prov#value>	"How to measure and optimize the marketing spend across channels is the biggest challenge ahead for multichannel marketers, said Jeff Haggin, president/CEO of Haggin Marketing Inc., San Francisco." .
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<http://webisa.webdatacommons.org/188048030>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<dmnews.com> .