Charlabidis, Yannis. Empowering open and collaborative goverance : Technologies and methods for online citizen engagment in public policy making / By Yannis Charlabidis. - 1st Ed. - London : Springer, 2012. - 296p. ; 00 cm. Subjects--Topical Terms: POLITICAL SCIENCE. Dewey Class. No.: 351.02854678 / CHA