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	1.	Barriers to employment among unemployed drug users: age predicts severity. [electronic resource] by Sigurdsson, Sigurdur Oli Ring, Brandon M O'Reilly, Kristen Silverman, Kenneth Producer: 20130308 In: The American journal of drug and alcohol abuse vol. 38 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Reduction of classroom noise levels using group contingencies. [electronic resource] by Ring, Brandon M Sigurdsson, Sigurdur O Eubanks, Sean L Silverman, Kenneth Producer: 20150813 In: Journal of applied behavior analysis vol. 47 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Generalization of posture training to computer workstations in an applied setting. [electronic resource] by Sigurdsson, Sigurdur O Ring, Brandon M Needham, Mick Boscoe, James H Silverman, Kenneth Producer: 20110826 In: Journal of applied behavior analysis vol. 44 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Automated measurement of noise violations in the therapeutic workplace. [electronic resource] by Sigurdsson, Sigurdur Oli Aklin, William Ring, Brandon M Needham, Mick Boscoe, James Silverman, Kenneth Producer: 20120615 In: Behavior analysis in practice vol. 4 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)