Riga 1: |
Riga 1: |
− | * http://www.penexchange.de/english/sites/klassiker/tula.html An article on tula | + | * [http://www.penexchange.de/english/sites/klassiker/tula.html] An article on tula |
− | * http://en.wikipedia.org/wiki/Niello Description of niello. | + | * [http://en.wikipedia.org/wiki/Niello] Description of niello. |