RU Dum

References

1. Bradstreet1979
   "RU Dum: Not Just A Question Anymore", A.J. 1979, p. 151-153
   http://bessie.eastern.edu/php_test/

2. Bradstreet1993
   Bradstreet, D.H. "RU Dum: A Binary Maker Exercise". Binary Maker 2.0 Manual, 1993, p. 85-87
   http://www.binarymaker.com/

3. Steelman2003
   Steelman, David P. "Some Observations of RU Dum". Ap. J. 202, Feb. 2003, pp. 101-104
   http://www.binarymaker.com/