id	keyword
ap-9679	czech
ap-9679	wichterle
ap-9679	lenses
ap-9679	polymers
ap-9679	otto
ap-9679	institute
ap-9679	chemistry
ap-9679	research
ap-9679	contact
ap-9679	prague
ap-9679	czechoslovakia
ap-9679	academy
ap-9679	republic
ap-9679	development
ap-9679	university
ap-9679	materials
ap-9679	průša
ap-9679	sciences
ap-9679	chemical
ap-9679	company
ap-9679	macromolecular
ap-9679	otto wichterle
ap-9679	work