fig 13A, Arrival_Tower

fig 76A, Project Kievit

fig 76B, Project Kievit

fig 76C, Project Kievit

fig 76D, Project Kievit

fig 77A, Concrete building elements

fig 77B, Concrete building elements

fig 77C, Concrete building elements

fig 77D, Concrete building elements

fig 77E, Concrete building elements

fig 77F, Concrete building elements

fig 77G, Concrete building elements

fig 77H, Concrete building elements