id	keyword
easat-10719	construction
easat-10719	labor
easat-10719	productivity
easat-10719	industry
easat-10719	work
easat-10719	production
easat-10719	labor productivity
easat-10719	vol
easat-10719	number
easat-10719	time
easat-10719	measures
easat-10719	authors