search for: vpdb

Hello All, I am looking for some help with was is probably very simple: I want the y-axis title '$B&D(B13C$B"s(B VPDB' and similarly for nitrogen on a secondary axis. I am able to get the delta notation and per mil notation separately but one messes up the other with the inclusion of quotations: ylab=expression("{delta}^13*C \211 VPDB") gives the per mil just fine but not the delta ylab=expression({...