Twin directories of rbtree:

[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/tcl/mirror/ftp.procplace.com/sorted/misc/misc/rbtree/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/tcl/mirror/ftp.procplace.com/sorted/misc/rbtree/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/tcl/mirror/ftp.procplace.com/sorted/packages-8.0/misc/rbtree/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/regress/lib/libc/gen/rbtree/
[DIR]  ftp://ftp.swin.edu.au/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.mgts.by/pub/gentoo/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.cs.utk.edu/pub/plank/rbtree/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-current/src/regress/lib/libc/gen/rbtree/
[DIR]  ftp://ftp.rz.tu-bs.de/pub/mirror/ALL_primary_servers/rsync/mirrors.sec.informatik.tu-darmstadt.de/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.tcl.tk/pub/tcl/mirror/ftp.procplace.com/sorted/misc/misc/rbtree/
[DIR]  ftp://ftp.tcl.tk/pub/tcl/mirror/ftp.procplace.com/sorted/misc/rbtree/
[DIR]  ftp://ftp.tcl.tk/pub/tcl/mirror/ftp.procplace.com/sorted/packages-8.0/misc/rbtree/
[DIR]  ftp://ftp.tiscali.nl/pub/mirror/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://77.88.19.68/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.uniovi.es/pub/extras/tcl/ftp.procplace.com/sorted/misc/misc/rbtree/
[DIR]  ftp://ftp.uniovi.es/pub/extras/tcl/ftp.procplace.com/sorted/misc/rbtree/
[DIR]  ftp://ftp.uniovi.es/pub/extras/tcl/ftp.procplace.com/sorted/packages-8.0/misc/rbtree/
[DIR]  ftp://ftp.udc.es/mirror/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.udc.es/mirror/netbsd/NetBSD-current/src/regress/lib/libc/gen/rbtree/
[DIR]  ftp://ftp.cs.mun.ca/pub/mirror/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.uni-kl.de/pub/linux/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.linux.hr/gentoo/portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.uevora.pt/mirrors/gentoo.org/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://204.152.191.39/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.ecc.u-tokyo.ac.jp/mirror2/rsync1.us.gentoo.org/portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.esat.net/mirrors/.3/ftp.netbsd.org/pub/NetBSD/NetBSD-current/src/regress/lib/libc/gen/rbtree/
[DIR]  ftp://ftp.esat.net/mirrors/.0/rsync.gentoo.org/gentoo-portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.esat.net/mirrors/.0/rsync.gentoo.org/gentoo-x86-portage/dev-ruby/rbtree/
pkg://ruby18-rbtree-0.1.3.tbz:21451/share/doc/ruby18/  downloads[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tbz/share/doc/ruby18/rbtree/
pkg://ruby18-rbtree-0.1.3.tgz:21984/share/doc/ruby18/  downloads[DIR]3  ruby18-rbtree-0.1.3.tgz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.1.3.tgz/share/doc/ruby18/rbtree/
pkg://ruby18-rbtree-0.2.0.tbz:22186/share/doc/ruby18/  downloads[DIR]3  ruby18-rbtree-0.2.0.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.2.0.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.2.0.tbz/share/doc/ruby18/rbtree/
[DIR]3  ruby18-rbtree-0.2.0.tbz/share/doc/ruby18/rbtree/
pkg://ruby18-rbtree-0.2.0.tgz:19699/share/doc/ruby18/  downloads[DIR]3  ruby18-rbtree-0.2.0.tgz/share/doc/ruby18/rbtree/
pkg://ruby18-rcairo-1.5.0.tgz:292353/share/doc/ruby18/  downloads[DIR]3  ruby18-rcairo-1.5.0.tgz/share/doc/ruby18/rbtree/
[DIR]  ftp://gentoo.inode.at/portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.uvsq.fr/pub/gentoo/portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.ro.debian.org/pub/mirrors/rubyforge.org/files/rbtree/
[DIR]  ftp://ftp.bm.kernel.org/pub/mirrors/gentoo/portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.cerias.purdue.edu/pub/os/gentoo/portage/dev-ruby/rbtree/
[DIR]  ftp://ftp.ascon.ru/gentoo-portage/dev-ruby/rbtree/