1
Published 1983
Springer US
... by the Federal Republic of Germany, Belgium, repre­ sented by the Prime Minister's Office for Science Policy...

2
Published 1984
Springer US
... by the Federal Republic of Germany, Belgium, represented by the Prime Minister's Office for Science Policy...

3
Published 1986
Springer US
.... Belgium, represented by the Prime Minister's Office for Science policy, became responsible in 1980...