کتاب های Huub Van Helvoort
![Next Generation SDH/SONET: Evolution or Revolution](http://cdn.ketabkoo.com/covers/1/102123-n.jpg)
Next Generation SDH/SONET: Evolution or Revolution
Huub van Helvoort, 2005![SDH/SONET explained in functional models: modeling the optical transport network](http://cdn.ketabkoo.com/covers/8/824963-n.jpg)
SDH/SONET explained in functional models: modeling the optical transport network
Huub van Helvoort, 2005![SDH/SONET Explained in Functional Models: Modeling the Optical Transport Network](http://cdn.ketabkoo.com/covers/8/824965-n.jpg)
SDH/SONET Explained in Functional Models: Modeling the Optical Transport Network
Huub van Helvoort(auth.), 2005![Praktische handleiding longfunctietesten](http://cdn.ketabkoo.com/covers/10/1090425-n.jpg)