@article {187830,
	title = {Simple Method for Measuring Small Retardance},
	journal = {Themes in Applied Sciences Research},
	volume = {1},
	year = {2018},
	pages = {1-3},
	author = {N. N. Nagib and A. W. Abdallah and M. S. Bahrawi and H. Osman and Mahmoud, N.A. and E. S. Mousa}
}
