Teresa Gomes José Silva José M. F. Craveirinha Carlos Simoes Failure protected shortest paths in GMPLS networks. 1-7 2011 ICUMT http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=6078854 conf/icumt/2011 db/conf/icumt/icumt2011.html#GomesSCS11