Publication Details (including relevant citation information): Protonation of cluster molecules: bridging hydrogen sites in tetrahedral, octahedral and capped square pyramidal clusters: Be4H8, B4H8, B6H7- and B6H8 as main group models for transition metal cluster systems. Cavanaugh, M. A.; Fehlner, T. P.; Stramel, R.; O'Neill, M. E.; Wade, K. Dep. Chem., Univ. Notre Dame, Notre Dame, IN, USA. Polyhedron (1985), 4(4), 687-95.