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	1.	Improving free play skills of severely retarded children. [electronic resource] by Wehman, P Marchant, J A Producer: 19780426 In: The American journal of occupational therapy : official publication of the American Occupational Therapy Association vol. 32 Availability: No items available. Save to lists Add to cart (remove)
	2.	Color invariant for daylight changes: relaxing the constraints on illuminants. [electronic resource] by Marchant, J A Onyango, C M Producer: 20011204 In: Journal of the Optical Society of America. A, Optics, image science, and vision vol. 18 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Shadow-invariant classification for scenes illuminated by daylight. [electronic resource] by Marchant, J A Onyango, C M Producer: 20001115 In: Journal of the Optical Society of America. A, Optics, image science, and vision vol. 17 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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