LaTeX.org

I give up....

question 1 fix found :
by trying completely randomly I have found the following fix
% {"\href{http://dx.doi.org/" doi * "}{" * swap$ * "}" *}
{", DOI:" * doi * " \href{http://dx.doi.org/" doi * "}{" * swap$ * "}" *}

question 2 "fix" found :
I will put into year the month + year info :cry:
I ...

Ok I am now back to the original file and I have issues I am not understanding.

0/ The original fcc.bst :

% ...
%
% ...
%
% ...
% ...
% ...
% ...
% ...
%

ENTRY
{ address
author
booktitle
chapter
edition
editor
howpublished
institution
journal
key
month
note
number
organization ...

Dear experts,
I have been provided a file to handle references in a project and after some modifications of this file, I am able to have all my references displayed nicely. But I have numerous warnings as :

You can't pop an empty literal stack for entry ESPP2013 while executing---line 1235 of file ...