| 1 | .SH |
| 2 | Acknowledgements |
| 3 | .PP |
| 4 | I am deeply indebted to J. F. Ossanna, |
| 5 | the author of |
| 6 | .UL troff , |
| 7 | for his repeated patient explanations |
| 8 | of |
| 9 | fine points, |
| 10 | and for his continuing willingness to |
| 11 | adapt |
| 12 | .UL troff |
| 13 | to make other uses easier. |
| 14 | I am also grateful to Jim Blinn, Ted Dolotta, |
| 15 | Doug McIlroy, Mike Lesk and Joel Sturman |
| 16 | for helpful comments on this paper. |
| 17 | .SH |
| 18 | References |
| 19 | .LP |
| 20 | .IP [1] |
| 21 | J. F. Ossanna, |
| 22 | .ul |
| 23 | .UC NROFF/TROFF |
| 24 | User's Manual, |
| 25 | Bell Laboratories |
| 26 | Computing Science Technical Report 54, 1976. |
| 27 | .IP [2] |
| 28 | B. W. Kernighan, |
| 29 | .ul |
| 30 | A System for Typesetting Mathematics _ User's Guide |
| 31 | .ul |
| 32 | (Second Edition), |
| 33 | Bell Laboratories |
| 34 | Computing Science Technical Report 17, 1977. |
| 35 | .IP [3] |
| 36 | M. E. Lesk, |
| 37 | .ul |
| 38 | TBL _ A Program to Format Tables, |
| 39 | Bell Laboratories |
| 40 | Computing Science Technical Report 49, 1976. |
| 41 | .IP [4] |
| 42 | M. E. Lesk, |
| 43 | .ul |
| 44 | Typing Documents on UNIX, |
| 45 | Bell Laboratories, 1978. |
| 46 | .IP [5] |
| 47 | J. R. Mashey and D. W. Smith, |
| 48 | .ul |
| 49 | PWB/MM _ |
| 50 | .ul |
| 51 | Programmer's Workbench Memorandum Macros, |
| 52 | Bell Laboratories internal memorandum. |