@article {29270,
	title = {Heat units and outbreaks of the forest tent caterpillar, Malacosoma disstria (Lepidoptera: Lasiocampidae)},
	volume = {105},
	year = {1973},
	pages = {529-543},
	publisher = {The Canadian Entomologist},
	author = {Ives, W, G. H.}
}
