Anyone familiar with the {fei} could help me with the references/bibliography?

Question

after reading this class manual i found two main commands to be used, the first one being

\addbibresource{ref.bib}  

to add the separate bib file to the document

and the secon one being

\printbibliography  

to print the references in the end of the document

but regardless of how i try it just simply won't work

this is how my Test code looks like

\documentclass[rascunho]{fei}  
\usepackage[utf8]{inputenc}  
\usepackage{gensymb}  
\usepackage{cancel}  

\addbibresource{ref.bib}  

\begin{document} 
\begin{center}  
\begin{vplace}  
\begin{HUGE}{\textbf{\MakeUppercase{Fisica Moderna}}}  
\end{HUGE}  
\\  
\vspace{0.2cm}
Material-Base: 
\\  
\vspace{0.2cm} 
R. Eisberg and R. Resnick, Quantum Physics of Atoms, Molecules, Solids, Nuclei, and Particles 2nd Edition, Wiley, 1985 \cite{eisberg1974quantum}.  
\\  
\vspace{0.2cm}
H. Moysés Nussenzveig, Curso de Fisica Basica, 4a. edicao, Vol. 4, Blucher, 2002. \cite{nussenzveig2002curso}  

\end{vplace}  
\end{center}  

\printbibliography  

\end{document}  

Every time i try to use the F11 command to call bibtex i get the following error message

This is BibTeX, Version 0.99d (MiKTeX 2.9.6500 64-bit) The top-level auxiliary file: teste.aux I found no \citation commands---while reading file teste.aux I found no \bibdata command---while reading file teste.aux I found no \bibstyle command---while reading file teste.aux (There were 3 error messages)

Process exited with error(s)

and i just dont know what else to try to do to fix this, this is how it looks after compiled:

my ref.bib file is the following:

@book{nussenzveig2002curso,
  title={Curso de f{\'\i}sica b{\'a}sica},
  author={Nussenzveig, Herch Moys{\'e}s},
  year={2002},
  publisher={E. Blucher}
}

@book{eisberg1974quantum,
  title={Quantum physics},
  author={Eisberg, Robert and Resnick, Robert},
  year={1974},
  publisher={John Wiley New York}
}