"Journal Long Form workform" in bibliography

Greetings!

 

I have some journal articles that repeatedly appear in the bibliography list of a Word Doc as “Journal Long Form workform” where the journal name is supposed to be. I have deleted the respective citations from the Word Document and inserted them again, but the problme remains. I have carefully checked the reference, deleted imported it again (from Elsevier), nothing. I even entered it by hand – to no avail. 99% of the references are fine, but from time to time this happened to me before. (Note that I converted all references two years ago from Procite to Endnote; not sure oif there could be some hidden problem).

 

I would appreciate any help.

 

Daniel

 (Win XP, MS Word 2003,  Endnote X.0.2)