1. Aoki, T. and Hasegawa, H. 2003. Late Quaternary glaciations in the Japanese Alps controlled by sea level changes, monsoon oscillations and topography. Zeitschrift für Geomorphologie Supplementband 130: 195–215.
2. Aoyama, M. 2005. Rock glaciers in the northern Japanese Alps: Palaeoenvironmental implications since the Late Glacial. Journal of Quaternary Science 20: 471–484.
3. Barsch, D. 1996. Rockglaciers: Indicators for the present and former geoecology in high mountain environments. Berlin: Springer.
4. Etzelmüller, B., Hoelzle, M., Soldøjrg, Fo., Heggem, E., Isaksen, K., Mittaz, C., Vonder Mühll, D., Ødegard, R. S., Haebrli, W. and Sollid, J. L. 2001. Mapping and modelling the occurrence and distribution of mountain permafrost. Norsk Geografisk Tidsskrift 55: 186–194.
5. Gądek, B. and Kędzia, S. 2008. Winter ground surface temperature regimes in the zone of sporadic discontinuous permafrost, Tatra mountains (Poland and Slovakia). Permafrost and Periglacial Processes 19: 93–304.