Index of /ftp/pwt56

Apache/2.2.8 (FreeBSD) mod_ssl/2.2.8 OpenSSL/0.9.7e-p1 PHP/5.2.5 with Suhosin-Patch mod_apreq2-20051231/2.6.0 mod_perl/2.0.3 Perl/v5.8.8 Server at www.nber.org Port 80