Unsaturated dodecahedranes--in quest of the C20H14 1,4,16-triene and C20H12 1,4,10(14),16-tetraene, and their cations and anions. - Reinbold J; Sackers E; Osswald T; Weber K; Weiler A; Voss T; Hunkler D; Wörth J; Knothe L; Sommer F; Morgner N; von IB; et al. (Chemistry (Weinheim an der Bergstrasse, Germany), 2002)