21
22
23
24
25
26
International journal of energy research, 34 (2010) S. 293 - 302
...Steffen, B....
27
28
29
30
31
International journal of energy research, 34 (2010) S. 284 - 292
...Steffen, B....
32
Transportation science, 43 (2009) S. 395 - 406
...Steffen, B....
33
34
35
36
37
Journal of physics / A, 42 (2009) S. 495205
...Steffen, B....
38
Fuel cells, 9 (2009) S. 474 - 481
...Steffen, B....
39
Journal of fuel cell science and technology, 6 (2009) S. 021012 - 021020
...Steffen, B....
40