Changes

which does somewhet more: not only the command \showreferences is activated, but on the top right corner of each page, a short list of all the references on that page is printed.

Actually, due to the fact that some of the informations is written between lines, depending on the bodyfont used in the document , one may need to fine tune more or less the position of the small prints: you can play with the following commands

by changing the numerical values according to your needs (remember nodes.destinations means the point where you have given a name to a certain object, and nodes.references corresponds to the point at which you refer to those objects).

to you can visualize only the destinations nodes, or you may say