Download Units

• Depending on the manuscript, different download units are recommended:

  	primary:	secondary:
  Journals:	single articles	volumes
  Books:	whole book	chapters

  Comment: The choice between ``primary'' and ``secondary'' may depend on the delivery format.

• Browsing through tables of content is desirable.

• Single pages as the only download unit is discouraged.

• Download of page ranges is desirable.