id	keyword
ap-9663	academy
ap-9663	czech
ap-9663	masaryk
ap-9663	masaryk academy
ap-9663	technical
ap-9663	labour
ap-9663	engineering
ap-9663	czechoslovakia
ap-9663	department
ap-9663	czech academy
ap-9663	sciences
ap-9663	institute
ap-9663	research
ap-9663	commission
ap-9663	society
ap-9663	engineers
ap-9663	national
ap-9663	czech technical
ap-9663	pro
ap-9663	university
ap-9663	economic
ap-9663	komise
ap-9663	new
ap-9663	development
ap-9663	praha
ap-9663	prague