by Salem, Mohammed A., Al-Zayadneh, Wasef, Schulze, Helmut Friedel, Cheruth, A.J.
Published in Urban water journal (17.02.2014)

by Stih, Renata, Schnock, Frieder, Preuss, Sebastian contrib, Till, Karen contrib, Friedel, Helmut contrib, Rath, Wolfgang contrib, Haxthausen, Charles W. contrib
Year of Publication 01.01.2008

by Friedel, Helmut
Published in Kunstforum international (01.01.2004)

by Friedel, Helmut
Published in Kunstforum international (01.01.2004)

by Friedel, Helmut
Published in Új Muvészet (01.09.2009)

by Friedel, Helmut
Published in Kunst und Antiquitäten (01.01.1994)

by Schmidt, Julia, Richter, Gerhard, Friedel, Helmut, Wilmes, Ulrich
Published in Zeitschrift für Kunstgeschichte (1999)

by (essay by) Friedel, Helmut
Published in Madrid: Editorial de Arte y Ciencia, 2004, ISBN: 8470755242 (Fundación Juan March) (01.03.2004)

by Friedel, Helmut
Published in Tvorchestvo (01.01.1989)

by Friedel, Helmut, Dickey, Tina
Published in Illumina ARTbibliographies Modern - unstructured (01.01.1998)

by Friedel, Helmut, Wilmes, Ulrich
Published in Illumina ARTbibliographies Modern - unstructured (01.01.1997)

by (introduction by) Friedel, Helmut, (text by) Carrino, Nicola
Published in London: Mayor Gallery, 2007, ISBN: 0953663396 (01.01.2007)

by Friedel, Helmut, Schneede, Uwe M
Published in ART: das Kunstmagazin (01.06.1992)

by (text by) Friedel, Helmut
Published in Munich: Städtische Galerie im Lenbachhaus, 2005, ISBN: 3886451607 (01.01.2005)

by (essay by) Zweite, Armin, (curated by) Friedel, Helmut
Published in Dusseldorf: K20 Kunstsammlung Nordrhein-Westfalen, 2005, ISBN: 3926154764 (Museum ed.) (01.01.2005)

by Kandinsky, Wassily, (edited by) Friedel, Helmut, (essay by) Barnett, Vivian Endicott
Published in Munich: Prestel, 2008, ISBN: 9783791341286 (English ed.) (01.01.2008)

by (text by) Friedel, Helmut, (text by) Iovane, Giovanni, (text by) Risaliti, Sergio
Published in Lucerne, Switzerland: Edizioni Periferia, 2006, ISBN: 9783907474341 (01.01.2006)

by Poetter, Jochen, Friedel, Helmut, Brehm, Margrit Franziska
Published in Illumina ARTbibliographies Modern - unstructured (01.01.1994)

by Friedel, Helmut
Published in Römisches Jahrbuch für Kunstgeschichte (01.01.1978)

by Prinz, Felix, (edited by) Friedel, Helmut
Published in Munich: Städtische Galerie im Lenbachhaus, 2007, ISBN: 9783886451685 (01.01.2007)