@article{Foerster1969, author = {Heinz von Foerster}, title = {What Is Memory That It May Have Hindsight and Foresight as Well? BCL Publication 153}, journal = {Bogoch, S. (Ed.): Proceedings of the Third International Conference: The future of the Brain Sciences, New York 1969, pp. 19-64.}, year = {1969}, }