.\" $Copyright:	$
.\" Copyright (c) 1984, 1985 Sequent Computer Systems, Inc.
.\" All rights reserved
.\"  
.\" This software is furnished under a license and may be used
.\" only in accordance with the terms of that license and with the
.\" inclusion of the above copyright notice.   This software may not
.\" be provided or otherwise made available to, or used by, any
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...
. \" $Header: ttack 1.2 86/03/06 $
.SH
Acknowledgements
.PP
I am deeply indebted to J. F. Ossanna,
the author of
.UL troff ,
for his repeated patient explanations
of
fine points,
and for his continuing willingness to
adapt
.UL troff
to make other uses easier.
I am also grateful to Jim Blinn, Ted Dolotta,
Doug McIlroy, Mike Lesk and Joel Sturman
for helpful comments on this paper.
.SH
References
.LP
.IP [1]
J. F. Ossanna,
.ul
.UC NROFF/TROFF
User's Manual,
Bell Laboratories
Computing Science Technical Report 54, 1976.
.IP [2]
B. W. Kernighan,
.ul
A System for Typesetting Mathematics _ User's Guide
.ul
(Second Edition),
Bell Laboratories
Computing Science Technical Report 17, 1977.
.IP [3]
M. E. Lesk,
.ul
TBL _ A Program to Format Tables,
Bell Laboratories
Computing Science Technical Report 49, 1976.
.IP [4]
M. E. Lesk,
.ul
Typing Documents on UNIX,
Bell Laboratories, 1978.
.IP [5]
J. R. Mashey and D. W. Smith,
.ul
PWB/MM _
.ul
Programmer's Workbench Memorandum Macros,
Bell Laboratories internal memorandum.
