Citation: Cernak, J.; Lipkowski, J. (1999). Two polymorphs of Cu (tn) Ni (C N)4 containing tetracyanonickellate anions with triple bridging function: preparation and crystallographic characterization. Monatshefte fuer Chemie und verwandte Teile anderer Wissenschaften (109,1978-), 130, pp. 1195-1206.