P. Helm

发表

R. Vigotti, P. Veyan, F. Trezza, 2003, 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of.

P. Helm, S. Glendinning, M. Rouainia, 2020, Acta Geotechnica.

K. Maniatis, W. Palz, W. Prins, 2002 .

André Faaij, P. Helm, H. M. Junginger, 2007 .

Mohamed Rouainia, Eugeniusz Koda, Amin Askarinejad, 2017, Quarterly Journal of Engineering Geology and Hydrogeology.

P. Helm, S. Glendinning, R. Stirling, 2020, Géotechnique.

I. Weiss, P. Sprau, P. Helm, 2003, 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of.

David Chiaramonti, Michael Stöhr, Mario Reali, 1999 .

G. Sala, W. Palz, P. Helm, 1979 .

P Helm, A. Pugachev, P. Helm, 2009 .

A. Heinzel, P. Helm, J. Wartmann, 2016 .