Twin directories of s4:

[DIR]  ftp://ftp.ci.pwr.wroc.pl/cdrom/solaris_2_2/s4/
[DIR]  ftp://ftp.ci.pwr.wroc.pl/cdrom/solaris_2_5_hw196_sparc/s4/
[DIR]  ftp://ftp.kfki.hu/pub/packages/security/COAST/sysutils/s4/
[DIR]  ftp://ftp.vims.edu/incoming/mcninch/WSS/s4/
[DIR]  ftp://ftp.espci.fr/incoming/ESPGG/Projet sciences EABJM ESPGG/Temporary/m3 6eme/s4/
[DIR]  ftp://ftp.espci.fr/incoming/ESPGG/Projet sciences EABJM ESPGG/Modules 6e/Document M 63 Des sens à la mesure/m3 6eme/s4/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/security/coast.cs.purdue.edu/unix/sysutils/s4/
[DIR]  ftp://ftp.win.tue.nl/pub/mirror/unix-archive/UnixArchive/PDP-11/Trees/V6/usr/source/s4/
[DIR]  ftp://ftp.cs.arizona.edu/icon/contrib/s4/
[DIR]  ftp://ftp1.sinica.edu.tw/pub1/icon/contrib/s4/
pkg://apache-cxf-2.0.5-incubator.tar.gz:21433349/apache-cxf-2.0.5-incubator-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/  downloads[DIR]3  apache-cxf-2.0.5-incubator.tar.gz/apache-cxf-2.0.5-incubator-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/s4/
pkg://apache-cxf-2.0.7.tar.gz:21577481/apache-cxf-2.0.7-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/  downloads[DIR]3  apache-cxf-2.0.7.tar.gz/apache-cxf-2.0.7-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/s4/
pkg://apache-cxf-2.0.8.tar.gz:21581012/apache-cxf-2.0.8-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/  downloads[DIR]3  apache-cxf-2.0.8.tar.gz/apache-cxf-2.0.8-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/s4/
pkg://apache-cxf-2.1.1-src.tar.gz:3326900/apache-cxf-2.1-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/  downloads[DIR]3  apache-cxf-2.1.1-src.tar.gz/apache-cxf-2.1-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/s4/
pkg://apache-cxf-2.1.1.tar.gz:23461867/apache-cxf-2.1.1-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/  downloads[DIR]3  apache-cxf-2.1.1.tar.gz/apache-cxf-2.1.1-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/s4/
pkg://apache-cxf-2.1.2.tar.gz:23669865/apache-cxf-2.1.2-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/  downloads[DIR]3  apache-cxf-2.1.2.tar.gz/apache-cxf-2.1.2-src/rt/core/src/test/resources/org/apache/cxf/wsdl11/s1/s2/s4/
[DIR]  ftp://ftp.embl-heidelberg.de/pub/databases/pdb_mirror/current/uncompressed/s4/
[DIR]  ftp://ftp.embl-heidelberg.de/pub/databases/pdb_mirror/current/compressed2/s4/
[DIR]  ftp://ftp.embl-heidelberg.de/pub/databases/pdb_mirror/current/compressed/s4/
[DIR]  ftp://ftp.padua.org/pub/bsd/UnixArchive/PDP-11/Trees/V6/usr/source/s4/
[DIR]  ftp://ftp.eimb.ru/pdb/s4/
[DIR]  ftp://194.199.20.114/linux/5/sourceforge/s/s4/
[DIR]  ftp://ftp.nvg.ntnu.no/pub/security/digex/s4/
[DIR]  ftp://ftp.mech.kth.se/pub/natalya/ExpNK0802/s4/
[DIR]  ftp://ftp.cmbi.kun.nl/pub/molbio/data/pdb_redo/s4/
[DIR]  ftp://ftp.sdsc.edu/pub/mirrors/coast.cs.purdue.edu/pub/tools/unix/sysutils/s4/
[DIR]  ftp://ftp.jrc.es/pub/users/nemryfr/Results sent 081114/s4/
[DIR]  ftp://iff companion.info/pub/users/nemryfr/Results sent 081114/s4/
[DIR]  ftp://ftp.gfdl.gov/pub/sjl/s4/
[DIR]  ftp://ftp.math.ethz.ch/hg/users/fey/NuMaI/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/structure_factors/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/pdb/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/mmCIF/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/nmr_restraints/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/XML-noatom/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/XML-extatom/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/structures/divided/XML/s4/
[DIR]  ftp://ftp.rcsb.org/pub/pdb/data/biounit/coordinates/divided/s4/
[DIR]  ftp://213.115.0.11/pub/repository/fragbite/demos/nglone/s4/
[DIR]  ftp://ftp.uvsq.fr/pub/tuhs/PDP-11/Trees/V6/usr/source/s4/
[DIR]  ftp://ftp.math.utah.edu/pub/mirrors/minnie.tuhs.org/PDP-11/Trees/V6/usr/source/s4/
[DIR]  ftp://ftp.cerias.purdue.edu/pub/tools/unix/sysutils/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/structures/divided/structure_factors/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/structures/divided/pdb/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/structures/divided/nmr_restraints/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/structures/divided/mmCIF/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/structures/divided/XML-noatom/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/structures/divided/XML-extatom/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/structures/divided/XML/s4/
[DIR]  ftp://ftp.ebi.ac.uk/pub/databases/rcsb/pdb-remediated/data/biounit/coordinates/divided/s4/