Pop, V.
București
Minerva
1915
Iancu, Dorin
Albatros
1980
Hansson, Rasmus
Oslo
The Royal Norwegian Ministry of Foreign Affairs
1998
8271774999
Ryvarden, Leif
8271775219
Enciclopedia RAO
2008
9789737172075
Oradea
Aquila '93
2005
9737140354