A. Spies

New German Telecommunications Act, The

Axel Spies, Jan F. Wrede, Jan Wrede, 1998 .

Helping Farmers Shift to Sustainable Family Farming Systems Using Accounting Extension Method: Two Successful Case Studies from Santa Catarina - Brazil

S. Chamala, A. Spies, E. Holz, 2000 .

Estimating Environmental Impact from Poultry Production in Brazil Using LCA

Malcolm K. Wegener, S. Chamala, A. Spies, 2002 .