TY  - BOOK
T1  - Denmark as a nodal point in the international telegraph network in the 1870s
A1  - Thestrup, Poul
A2  - Johansen, Hans Chr
LA  - English
UL  - https://colectivo.uloyola.es/Record/L39030
NO  - En "European networks..." / edited by Albert Carreras. Pag. 72-75
KW  - Comunicaciones : Dinamarca : Siglo 19o
KW  - Telégrafo : Dinamarca : Siglo 19o
ER  -