@inbook {turner_understanding_1987,
	title = {Understanding the elements of system design},
	booktitle = {Critical {Issues} in {Information} {Systems} {Research}},
	year = {1987},
	note = {n/a},
	pages = {97{\textendash}111},
	publisher = {John Wiley \& Sons},
	organization = {John Wiley \& Sons},
	address = {Chichester},
	abstract = {<p>requirements are evolved, not predetermned: requirements design</p>
},
	keywords = {evolution of design},
	author = {Turner, Jon A.},
	editor = {Boland, R. J. and Hirschheim, R. A.}
}
