Investment in transport infrastructure : in the 1980's
Statistical trends in transport : = Annales statistiques de transport
Planetary protection for Europa radar sounder antenna
A magnetotelluric instrument for probing the interiors of Europa and other worlds
Calculating risk and payoff in planetary exploration and life detection missions
Annales statistiques de transport : = Statistical trends in transport
Contribution of road traffic emissions to tropospheric ozone in Europe and Germany