J.~Olexa, M.~Gąsior, "Synchronisation of the LHC Betatron Coupling and Phase Advance Measurement System", in Proc. 3rd International Beam Instrumentation Conference, Monterey, CA, USA, paper MOPD04, pp. 139–143, ISBN: 978-3-95450-141-0, \url{http://jacow.org/IBIC2014/papers/mopd04.pdf}, 2014.