%0 Journal Article %A Theodorakopoulos, Giannoula%A %A Petsalakis, Ioannis D.%A %A Nicolaides, Cleanthes A. %D 1987 %T Potential-Energy Hypersurfaces of H-4 in the Ground and the 1st 2 Singlet Excited Electronic States %J Journal of Molecular Structure: THEOCHEM %V 149 %@ 0166-1280 %R 10.1016/0166-1280(87)80042-8 %I Elsevier BV %P 23–31 %N 1–2 %U https://hdl.handle.net/10442/6629 %> Αποθετήριο Ήλιος / ΕΙΕ