Søren Brier. Foreword - Niklas Luhmann: Cybernetics, Systems and Semiotics. Cybernetics and Human Knowing, 6(3), 1999. [doi]
@article{Brier99, title = {Foreword - Niklas Luhmann: Cybernetics, Systems and Semiotics}, author = {Søren Brier}, year = {1999}, url = {http://www.imprint.co.uk/C&HK/vol6/v6-3ind.html}, researchr = {https://researchr.org/publication/Brier99}, cites = {0}, citedby = {0}, journal = {Cybernetics and Human Knowing}, volume = {6}, number = {3}, }