BibTeX, biblatex and biber ⇒ Certain Citations undefined

[cvb25]

Hello,

I have a document with about 60 citations in. All but two of these citations work. So I believe I have set up by bibliography OK, but there is something wrong with these two.

I am using \bibliogrpahystyl{ieeetr}

One of the entries in my .bib file is:

Code: Select all

@book{Hutchinson1991,
author = {Hutchinson, J. W. and Sou, Z.},
booktitle = {Advances in Applied Mechanics},
file = {:E$\backslash$:/cambridge/papers/mixed mode craxking in layered materials.pdf:pdf},
pages = {63--192},
title = {{Mixed Mode Cracking in Layered Materials}},
year = {1991}
}

the other is

Code: Select all

@book{Ferry1980,
address = {New York},
author = {Ferry, J D},
edition = {3rd},
publisher = {Wiley},
title = {{Viscoelastic properties of polymers, 3rd Ed.}},
year = {1980}
}

When I run the .bi file I get no warnings about either of these entries.

Does anybody know how to solve this?

Thanks

C

[7of9]

Try adding a comma after the year = {....} entry. In theory, that shouldn't matter, but I've had the same problem you're having and that's what fixed it for me.