Frei OttoOtto, Frei, Irene Meissner, Eberhard Möller, Mirjana Grdanjski · First published 1991Open the Tome
Frei Otto. das GesamtwerkIrene Meissner, Eberhard Möller, Mirjana Grdanjski · First published 2006Open the Tome
Frei Otto studioHarvard University. Graduate School of Design, Harvard University. Department of Architecture · First published 1975Open the Tome
