1.
|
Köln : C. Heymann, c1991.
German | T 23 TRE.R |
|
2.
|
Stockholm : Institute for Intellectual Property and Market Law, Stockholm University, c1984.
English | F 44 INS.S |
|
3.
|
Oxford : Hart, 2011.
English | F 40 LID.N |
|
4.
|
Köln : Carl Heymann, [1984]
German | G 941 BEI.E |
|