@ARTICLE{micro-hardness2011,
     Title={Micro-hardness and machined surface damage study for continuous and discontinuous ultrasonic vibration assisted Electric Discharge Machining},
     Author={Jujhar Singh, P.S. Satsangi, R.S. Walia, V.P.Singh },
     Journal={International Journal of Materials and Manufacturing Processes},
     Volume={0},
     Number={0},
     Pages={0},
     Publisher={Taylor & Francis},
     Year={2011}
}