1. Winteractive shrews in the subnivean environment;Ackefors;Zoologisk Revy,1964
2. Activity of soil microarthropods beneath snowpach in alpine tundra and subalpine forest;Addington;Pedobiologia,1999
3. A sampling technique for active subnivean invertebrates in southern Manitoba;Aitchison;The Manitoba Entologist,1974
4. Spiders active under snow in southern Canada;Aitchison;Symposium Zoological Society of London,1978
5. Winter-active subnivean invertebrates in southern Canada. II. Collembola;Aitchison;Pedobiologia,1979a