Object-Oriented Programming Concepts by Roberto Zicari · Published November 10, 2013 · Updated November 10, 2013 Sun, The Java Tutorial A great tutorial to get acquainted with OOP. LINK
Approaches to Adding Persistence to Java January 1, 1996 by Roberto Zicari · Published January 1, 1996 · Last modified February 19, 2014
Python 3.5.4rc1 and Python 3.4.7rc1 September 5, 2017 by Roberto Zicari · Published September 5, 2017
Persistenz von Objekten September 1, 2004 by Roberto Zicari · Published September 1, 2004 · Last modified February 18, 2014