selected publications
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academic article
- Tracking an invader to its origins: the invasion case history of Crupina vulgaris. Weed Research. 43:177-189. 2003
- Estimation of base and optimum temperatures for seed germination in common crupina (Crupina vulgaris). Weed Science. 45:529-533. 1997
- Prediction of flowering in common crupina (Crupina vulgaris). Weed Science. 45:519-528. 1997
- Reproductive phenology in yellow starthistle (Centaurea solstitialis). Weed Science. 45:763-770. 1997