@article {171447,
	title = {Modelling and Optimization for Cutting Forces in Ultrasonic-Assisted Drilling of Soda Glass},
	journal = {Key Engineering Materials},
	volume = {775},
	year = {2018},
	pages = {487-492},
	author = {Abdallah Abdelkawy and Mohab Hossam and Hassan El-Hofy}
}
