Hello, I am using LyX with Natbib and Natbib style set to "Author-year" (under "Document" -> "Settings" -> "Bibliography" -> "Citation Style").
If I use "Insert" -> "List / TOC" -> "BibTex Bibliography", and choose "alpha" as the "Style", then I get results such as [Tar56] Alfred Tarski. Logic, Semantics, Metamathematics.... This is all good except that I need it to abbreviate the first names; e.g.: [Tar56] A. Tarski. Logic, Semantics, Metamathematics.... Apparently Natbib with abbrvnat should do this (?), but when I select "abbrvnat" (instead of "alpha" above), I get an error: "Undefined control sequence." Your help is appreciated, Mehrdad
