| Borland, "Eureka: The Solver", Borland International, Scotts Valley, Calif., 1987, pp. 20-21. |
| Field, "MacWrite and MacPoint, Osborne McGraw-Hill", Berkeley, Calif., 1984, pp. 3-11. |
| IBM Technical Disclosure Bulletin articles as follows: "Keyboard/Mouse Adapter," vol. 27, No. 5, Oct. 1984 at pp. 3042-3043. |
| "Bimodal Mouse," vol. 29, No. 1, Jun. 1986 at pp. 421-422. |
| "Method for Concurrent Support of Keyboard and Mouse," vol. 30, No. 11, Apr. 1988 at p. 110. |
| "Novel Pointing Device and Cursor Control," vol. 31, No. 5, Oct. 1988 at pp. 276-277. |
| Research Disclosure article entitled "Compatible Mouse and Mouseless User Interface," Apr. 1986, No. 264, article 26411. |