%0 Generic %C New York : %D 2005. %I IEEE, %@ 9780738163888 %T IEEE standard for learning technology data model for content object communication. %U http://SK8ES4MC2L.search.serialssolutions.com/?sid=sersol&SS_jc=TC0001919553&title=IEEE%20standard%20for%20learning%20technology%20%3A%20data%20model%20for%20content%20object%20communication