1
Published in: Statističeski godišnik na bălgarskite dăržavni želěznici i pristanišča
1939(1941)
Book
2
Published: Sofija, 1941-1941
Journal
3
Book
4
Published: [Sofia] : Militärverl, [1982?]
Book
5
Published: Berlin ; München [u.a.] : Langenscheidt, 2005
Book