This is not an LibXML solution, but I thought I'd paste it in cases anyone prefers using more perlish syntax for munging XML. 
use strict;
use warnings;
use XML::TreeBuilder;

my $doc = XML::TreeBuilder->new();
$doc->parse_file("minimal.xml");

my @vol = $doc->look_down(_tag => 'Volume', VolumeCategory => 'L');
# also tried various quoting scheme...
 my $tmp = scalar(@vol);
 print "Number of entries: $tmp \n"; # 1

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In reply to Re: Finding node with attribute XML::LibXML by codiac
in thread Finding node with attribute XML::LibXML by jjap

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