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 ###Ada
 * [Ada 95: The Craft of Object-Oriented Programming](http://faculty.cs.wwu.edu/reedyc/AdaResources/bookhtml/contents.htm)
 * [Ada Distilled](http://www.adapower.com/pdfs/AdaDistilled07-27-2003.pdf) (PDF)
-* [Ada for Software Engineers](http://www.adapower.com/pdfs/AdaDistilled07-27-2003.pdf) (PDF)
+* [Ada for Software Engineers](http://pnyf.inf.elte.hu/kto/oktatas/ada/books/ase.pdf) (PDF)
 
 
 ###Android