APA

Heissenberger T., Austria Ferngas, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires) & Austria Ferngas.Fuell cell technology. : .

Chicago

Heissenberger Thomas, Austria Ferngas, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires) and Austria Ferngas.Fuell cell technology. : .

Harvard

Heissenberger T., Austria Ferngas, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires) and Austria Ferngas.Fuell cell technology. : .

MLA

Heissenberger Thomas, Austria Ferngas, World Energy Congress (18th. : 2001 oct. 21-25 : Buenos Aires) and Austria Ferngas.: . .