% BibTeX bibliography style `label'
% Modified from the `alpha' style
% * New entry labelkey added. If it is present, it will be used as the
% label. Otherwise the alpha style label is used.
% * The first line of the bibliography will contain only the label.
% * The command \textsc will be removed from the beginning of the labelkey
% for sorting (see the sortifysc function).
% * New entries url and ref added. If url is nonempty it will be typeset