use strictures;
use open qw( :std :utf8 );

my $corpus = do { local $/; <DATA> };

my @bibs;
push @bibs, $corpus =~ m{<BIB>(.+?)</BIB>}sg;
s/[^\S ]+/ /g for @bibs; # Normalize whitespace.

if ( @bibs )
{
    print "Found...\n";
    print "\t* $_\n" for @bibs;
}
else
{
    print "No love.\n";
}

__DATA__
In fact, <BIB>Falco (2012)</BIB> today Louise is hardly isolated. More
than 5 million babies have been born using the procedure, which has
become almost routine. And at the age of 28, Louise became a mother
herself, giving birth to a baby boy name Cameron—conceived, by the
way, in the old-fashioned way (<BIB>Falco, 2012</BIB>; <BIB>ICMRT,
2012</BIB>).

##</code><code>##

Found...
    * Falco (2012)
    * Falco, 2012
    * ICMRT, 2012