The programs loadkeys, dumpkeys and showkey were derived from
Risto Kankkunen's kbd-0.81.

The font loading code goes back to the codepage package by
Joel Hoffman (joel@wam.umd.edu). (He tells me that the original
reference is: "From: p. 307 of _Programmer's Guide to PC & PS/2
Video Systems_ by Richard Wilton. 1987.  Microsoft Press".)

The kernel and user interface for the font loading were derived
from Eugene Crosser's intl_con package.

[Similar things were done earlier by
 Jerry Kaidor (tr2!jerry@abekas.com, jkaidor@synoptics.com) : fontpak,
 H. Peter Anvin (hpa@nwu.edu) and Pavel Zaboj (xzaboj@vse.cs).
Their code was not used, but the Latin-1 *.psf fonts were developed
by H. Peter Anvin, and the Latin-2 ones by Pavel Zaboj.]

The file
	kbdrate.c
is Copyright (C) 1992 Rickard E. Faith.

The files
	dumpkeys.c loadkeys.y loadkeys.analyze.l ksyms.c ksyms.h
	showkey.c keymaps.5 loadkeys.1 dumpkeys.1 showkey.1
are Copyright (C) 1993 Risto Kankkunen.

The files
	setfont.c setfont.8 mapscrn.c mapscrn.8
(and changes to loadkeys.y)
are Copyright (C) 1993 Eugene G. Crosser.

The files
	psfaddtable.1 psfgettable.1 psfstriptable.1
are Copyright (C) 1994 H. Peter Anvin.

The files
	chvt.c clrunimap.c deallocvt.c fgconsole.c findfile.c
	getfd.c getkeycodes.c getunimap.c kbd_mode.c loadunimap.c
	psffontop.c psfxtable.c resizecons.c screendump.c setkeycodes.c
	setleds.c setmetamode.c setvesablank.c showconsolefont.c
	spawn_console.c spawn_login.c
	chvt.1 deallocvt.1 kbd_mode.1 setleds.1 setmetamode.1
	getkeycodes.8 loadunimap.8 resizecons.8 setkeycodes.8
	kbd.FAQ.*
(and changes to earlier mentioned programs)
are Copyright (C) 1994-1999 Andries E. Brouwer.

The file
	openvt.c
is Copyright (C) 1994 by Jon Tombs <jon@gtex02.us.es>
portions also authors: Andries E. Brouwer <aeb@cwi.nl>
                       Joshua Spoerri <josh@cooper.edu>
                       Chuck Martin <cmartin@bigfoot.com>
                       Alexey Gladkov <gladkov.alexey@gmail.com>

The file
	kbdinfo.c
is Copyright (C) 2011 Alexey Gladkov <gladkov.alexey@gmail.com>.

The file
       setvtrgb.c
is Copyright (C) 2011 Alexey Gladkov,
portions also Copyright (C) 2011 Canonical Ltd.
              Authors: Seth Forshee <seth.forshee@canonical.com>
                       Dustin Kirkland <kirkland@canonical.com>

The files
       auth.c pam_auth.h pam.c parse.c screen.c username.c vlock.c vlock.h vt.c
is Copyright (C) 1994-1998 Michael K. Johnson <johnsonm@redhat.com>
   Copyright (C) 2002-2006 Dmitry V. Levin <ldv@altlinux.org>