J. Nielsen

发表

S. Helama, J. Nielsen, Pasi Heikkilä, 2015, Environmental Monitoring and Assessment.

R. Bromley, J. Genise, R. Mikuláš, 2006 .

S. Helama, David L. Rodland, J. Nielsen, 2007, Netherlands Journal of Geosciences - Geologie en Mijnbouw.

J. Nielsen, 1999, Bulletin of the Geological Society of Denmark.