@article {57775534,
	title = {Polarographic Investigation of Co(II), Ni(II) and Zn(II) Complexes With Procaine},
	journal = {Analytical Letters},
	volume = {30},
	year = {1997},
	note = {n/a},
	pages = {2279{\textendash}2288},
	abstract = {n/a},
	doi = {10.1080/00032719708001739},
	author = {Gamal O. El-Sayed and Yousry M. Issa}
}
