[3] RÓKA, R. :

Possibilities for the increasing of the signal transmission’s efficiency in the optical transmission medium environment

     and their implementation in the NGN converged network,

The habilitation work

Bratislava ( Slovakia ), May 2008, pp. 73, ( in Slovak )

 

[2] RÓKA, R. :

The contribution to the increasing of the signal transmission’s efficiency in the access networks

     by means of the xDSL technologies,

The PhD. thesis,

Bratislava ( Slovakia ), January 2002, pp. 87, ( in Slovak )

 

[1] RÓKA, R. :

The utilizing of the xDSL technologies in the access network,

The PhD. classification work,

Bratislava ( Slovakia ), January 2000, pp. 48, ( in Slovak )