1. Needle ice and seedling establishment in southwestern British Columbia;Brink;Can. J. Plant Sci.,1967
2. Byrnes , W. R. The Effect of Soil Texture on the Occurrence and Type of Freezing University Park, Pennsylvania 1951
3. Outcalt , S. I. A Study of Needle Ice Events at Vancouver, Canada 1961-1968 University of British Columbia Vancouver 1969