Cycle Lengths and Graph Orientations. - Oliver Pretzel; Dale Youngs (SIAM J. Discret. Math., 1990)

Balanced graphs and noncovering graphs. - Oliver Pretzel; Dale Youngs (Discret. Math., 1991)

The size of a minimum five-chromatic K4-free graph. - Denis Hanson; Gary MacGillivray; Dale Youngs (Discret. Math., 1993)

Minimization Criteria for Frequency Planning in Cellular Radio Systems. - Dale Youngs (IEEE Trans. Inf. Theory, 1998)