@ref{Barnumber check}. If you
include checks every so often, then if you make a mistake, you can pinpoint
it quicker. How often is @q{every so often}? It depends on the complexity
@ref{Barnumber check}. If you
include checks every so often, then if you make a mistake, you can pinpoint
it quicker. How often is @q{every so often}? It depends on the complexity