@article {18446,
	title = {Two implementation models of abstract data types},
	journal = {Computer Languages},
	volume = {12},
	year = {1987},
	month = {1987///},
	pages = {21 - 25},
	abstract = {This paper compares two implementation models for abstract data types: direct and indirect implementations. Direct implementations offer relatively cheap execution and expensive compilation costs while indirect implementations result in relatively expensive implementations and cheap compilation costs. These two models are both accommodated by Ada, and a small experiment compares their costs for a particular data type.},
	keywords = {abstract data type, ada, run-time implementation},
	isbn = {0096-0551},
	doi = {10.1016/0096-0551(87)90009-9},
	url = {http://www.sciencedirect.com/science/article/pii/0096055187900099},
	author = {Gannon,John D. and Zelkowitz, Marvin V}
}
