@article {84664,
	title = {Different signal processing techniques of ratio spectra for spectrophotometric resolution of binary mixture of bisoprolol and hydrochlorothiazide; a comparative study},
	journal = {Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy  },
	volume = {140},
	year = {2015},
	pages = {334{\textendash}343},
	author = {Eman S. Elzanfaly and Said A. Hassan and Maissa Y. Salem and Salem, Badr A. El-Zeany}
}
