Cullen, D, {Longour}, C, Narro, JG, {Blank}, B, {Lewitowicz}, M, {Miehe}, CH, {Regan}, PH, {Applebe}, D, {Axelsson}, L, {Bruce}, AM, {Catford}, WN, {Chandler}, C, {Clark}, RM, {Cullen}, DM, {Czajkowski}, S, {Daugas}, JM, {Dessagne}, PH, {Fleury}, A, {Frankland}, L, {Gelletly}, W, {Giovinazzo}, J, {Greenhalgh}, B, {Grzywacz}, R, {Harder}, M, {Jones}, KL, {Kelsall}, N, {Kszczot}, T, {Page}, RD, {Pearson}, CJ, {Reed}, AT, {Sorlin}, O & {Wadsworth}, R 1998, '
Observation of Fermi Superallowed $\beta ^{+}$ Decays in Heavy Odd-Odd, N = Z Nuclei: Evidence for 0$^{+}$ ground states in $^{78}$Y, $^{82}$Nb, and $^{86}$Tc',
Phys.Rev.Lett., vol. 81.