From: helbig@asclothestro.multivax.de   
      
   I'm trying to figure out how to use the spphys.bst for Foundations of   
   Physics together with natbib, in particular its \citet command.  There   
   is a natbib option to the required svjour3 class, but I get better   
   results by leaving it out and loading natbib explicitly, at least if I   
   want to use \citet.   
      
   I don't want to change the .tex source to avoid \citet.  (Note that   
   \citep works OK).   
      
   I can hack it like this:   
      
      o  first process normally, including BibTeX   
      
      o  use unsrtnat.bst to produce a .bbl file in the proper format   
      
      o  process using the .bbl generated in the previous step   
      
      o  replace that .bbl with the original .bbl   
      
   It produces some errors along the way, but seems to basically work.   
      
   But it is an ugly hack.   
      
   Surely someone has solved this already!   
      
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