@article {3997,
	title = {An Improved Third Normal Form for Relational Databases},
	journal = {ACM Transactions on Database Systems (TODS)},
	volume = {6},
	year = {1981},
	pages = {329--346},
	doi = {10.1145/319566.319583},
	author = {Tok Wang Ling and Frank Tompa and Tiko Kameda}
}
