"Communication: its field and purpose — An example of a communication process — The accuracy of the communication: the determinants of the effect — Learning: communication in a persona] context — Interaction: the aim of communication between people — The social system: matrix of communication — Meaning and communication — Dimensions of meaning Observations and judgements: the structuration of perception — Communication — Definition: an attempt to convey meaning." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 253, topic code 010)