id	keyword
clogic-191750	nature
clogic-191750	michael
clogic-191750	marx
clogic-191750	michael mikulak
clogic-191750	human
clogic-191750	labour
clogic-191750	environmental
clogic-191750	humanity
clogic-191750	logic
clogic-191750	ecology
clogic-191750	copyright
clogic-191750	issn
clogic-191750	world
clogic-191750	self