Sorting the Bibliography

[Walid Maalej]

Dear all,

I ve just added my references using the Lyx features. Now I would like to
have theses references alphabetically sorted in the final document. 
Can I do it with Lyx? If No, do you know which LaTeX commands will solve my
problem?
Furthermore, is it possible to sort a list of items (e.g. a Glossary or
definitions) using LyX or LaTeX
Thanks a lot in advance for your help.
Best Regards,
Walid