How to cite section of a paper or chapter a book

For section of a book you can add reference of type @inbook to bibtex, but for my purposes it is usually easier to cite using

\cite[section~1.1]{foo}

 this way you can for instance cite several parts / sections / chapters from the same book or paper.

How to write citations on the right side on beamer

Sometimes when you cite (repeat) entire parts or figures of cited work in presentation it is advisable to write a citation on the right bottom corner  of the slide. This can be done as:

 \begin{flushright}
    \cite{mypaper}
\end{flushright}

How to cite MATLAB in LaTeX documents

Here is a good idea how to do it

http://talmai-oliveira.blogspot.pt/2011/06/how-to-cite-matlab-bibtex-latex.html