Meier, P.; Zettel, J . (1997). "Cold hardiness in Entomobrya nivalis (Collembola, Entomobryidae): annual cycle of polyols and antifreeze proteins, and antifreeze triggering by temperature and photoperiod". Journal of Comparative Physiology B. 167 (4): 297–304. doi:10.1007/s003600050077. S2CID32596223.
Meier, P.; Zettel, J . (1997). "Cold hardiness in Entomobrya nivalis (Collembola, Entomobryidae): annual cycle of polyols and antifreeze proteins, and antifreeze triggering by temperature and photoperiod". Journal of Comparative Physiology B. 167 (4): 297–304. doi:10.1007/s003600050077. S2CID32596223.