Engel, Heino Tragsysteme = Structure systems / Structure systems Heino Engel ; with a preface by Ralph Rapson - Ostfildern-Ruit : Verlag Gerd Hatje, 1997 - 352 p. : ill. ; 30 cm. Originally published in Germany as Tragsysteme Parallel German and English text Bibliography : p. 352 ISBN: 3775707069 RM259.00 Subjects--Topical Terms: ArchitectureStructural engineering