Hi, Jannika I am using Lyx and bibtex on SUSE Linux.I know little about endnote, lyx, bibtex on MacOS, so I can't make any suggestions about them.
You might use other bibtex tools on Mac. BibDesk http://bibdesk.sourceforge.net/ JabRef (work on JAVA, I'm not sure it can work on MacOS) http://jabref.sourceforge.net/ And here is pubmed data base, which can export Bibtex format. HubMed http://www.hubmed.org/ Best wishes, Tak Shiihara
