e9d6bb54_IMS_LODE_Base_Document_v1_0__3
[0] Accrual Periodicity [1] An attribute using a controlled vocabulary from DCCAP [DCCAP, 07] to describe how often new learning objects are added to (or removed from) the collection. [2] VocabularyTerm [3] 
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IMS LODE Base Document v1.0
3