K. Hansen

Conditional male fertility in maize

J. Astwood, P. Pollak, L. P. Taylor, 1995, Sexual Plant Reproduction.

Correlation of Genotype Performance for Agronomic and Physiological Traits in Space-Planted versus Densely Seeded Conditions

John M. Martin, S. P. Lanning, L. Talbert, 2005 .

Performance of wheat germplasm in competitive versus non-competitive conditions

K. Hansen, 2004 .