@inbook {554,
	title = {Maintaining competence through updating},
	booktitle = {Maintaining professional competence: Approaches to career enhancement, vitality, and success throughout a work life},
	year = {1990},
	pages = {9-43},
	publisher = {Jossey-Bass},
	organization = {Jossey-Bass},
	address = {San Fransisco},
	issn = {978-1555422271},
	author = {Dubin, Samuel S}
}
