31dacfec_tion_Model__v1_5__IN_PROGRESS___Description
[Option] presentChunk [Level] Result Set [Default] 0 [Description] 
The number of records to be requested from the server in each chunk. The value 0 means to request all the records in a single chunk.
ZOOM - ZOOM: The Z39.50 Object-Orientation Model, v1.5 (IN PROGRESS)
Description