1. Adsley, I., Nichols, A. L. and Toole, J. (1996) Decay of Th-234 and daughter Pa-234m in secular equilibrium: resolution of observed anomalies. U.K. DoE Report DOE/CPR2/41/1/219, to be published
2. Niveaux de bas-spin de 234U peuples dans la desintegration de 234mPa(UX2);Ardisson;Nuovo Cimento,1975
3. The decay of 1.14min isomer of 234Pa(UX2);Bjornholm;Nucl. Phys.,1963
4. Decay of 234Th to the 234Pa isomers;Chu;Phys. Rev.,1978
5. Beta-gamma coincidence spectrum of the UX-complex;de Haan;Physica,1955