F. Westerlund

Soil factors affecting the reproduction and survival of Olpidium brassicae and its transmission of big vein agent to lettuce.

J. M. Duniway, R. N. Campbell, R. G. Grogan, 1978 .

Probability mapping of land use change: A GIS interface for visualizing transition probabilities

Earl J. Bell, Miles G. Logsdon, M. Logsdon, 1996 .

Effect of temperature on transmission, translocation, and persistence of the lettuce big-vein agent and big-vein symptom expression.

R. N. Campbell, R. G. Grogan, F. Westerlund, 1978 .