Next generation SOA : a concise introduction to service technology & service orientation / Thomas Erl, Clive Gee, Jürgen Kress, Berthold Maier, Hajo Normann, Pethuru Raj, Leo Shuster, Bernd Trops, Clemens Utschig-Utschig, Philip Wik, Torsten Winterberg. Upper Saddle River, NJ : Prentice Hall [u.a.], c2015