Transport 2040 : Analysis of technical developments in transport - Maritime, air, rail and road
1978 ◽
Vol 36
(3)
◽
pp. 516-520
2020 ◽
Vol 237
(10)
◽
pp. 1172-1176
Keyword(s):
1983 ◽
Vol 58
(2)
◽
pp. 125-142
◽
Keyword(s):
Keyword(s):