@article {47846,
	title = {Flowering phenology and seed viability of native and non-native poplars in north-central Alberta},
	volume = {83},
	year = {2007},
	pages = {239-246},
	publisher = {The Forestry Chronicle},
	author = {Huybregts, Arlene A. and Thomas Barb R. and Dancik, Bruce P.}
}
