//-->
Task force : US can shrink oil gap with unconventional fuels
Clark, Judy R., (2007)
Erdöl & Kohle, Erdgas, Petrochemie : EKEP
(1995)
Germany's synthetic fuel industry, 1927 - 1945
Stranges, Anthony N., (2000)
Japanese-German business relations : cooperation and rivalry in the inter-war period
Kudō, Akira, (1998)
The transfer of leading-edge technology to Japan : the Krupp-Renn process
Kudō, Akira, (1994)
Nihon keizai to kankyo mondai
Kudō, Akira, (1975)