@article{Fre, author = {Fr{\´e}, Ilgen}, title = {Extensionalism and twistor space}, series = {Leonardo : Magazin f{\"u}r Architektur}, journal = {Leonardo : Magazin f{\"u}r Architektur}, number = {3}, publisher = {WEKA Fachverl.}, address = {Kissing}, issn = {0935-1108}, pages = {177 -- 185}, subject = {Malerei}, language = {en} } @inproceedings{Fre, author = {Fr{\´e}, Ilgen}, title = {The synchronizing self}, series = {Katachi symmetry}, booktitle = {Katachi symmetry}, editor = {Ogawa, Tōru}, publisher = {Springer}, address = {Tokyo}, isbn = {4-431-70161-3}, pages = {315 -- 321}, subject = {Harmonie }, language = {en} } @article{Fre, author = {Fr{\´e}, Ilgen}, title = {Symmetry as key-notion in the interrelationship between science and constructivist art}, series = {Symmetry: culture and science / Symmetrion}, volume = {10}, journal = {Symmetry: culture and science / Symmetrion}, number = {1/2}, editor = {International Society for the Interdisciplinary Study of Symmetry,}, issn = {0865-4824}, pages = {163 -- 199}, subject = {Bette, Micheal}, language = {en} } @incollection{BradeLeistner, author = {Brade, Johanna and Leistner, Gerhard}, title = {Jedes Bild ist ein Farbgedanke : zur Farbe in der konkreten Malerei / Zwischen strenger Geometrie und Farbfeldmalerei : Konstruktive Konzepte seit 1960 von deutschen K{\"u}nstlern aus Ost- und S{\"u}dosteuropa}, series = {Kunst als Konzept}, booktitle = {Kunst als Konzept}, editor = {Stiftung Ostdeutsche Galerie,}, address = {Regensburg}, isbn = {3-89188-074-X}, pages = {75, 89 -- 152-159}, subject = {Farbwirkung}, language = {de} }