by E. B. Uvarov and D. R. Chapman. [by] A.T. Dover and F. T. Chapman. by I. M. Beterov and V. P. Chebotaev. E.C. Oliver and R.J. Chapman. by J. C. D. Brand & J. C. Speakman. by J.A.R. Lockhart and A.J.L. Wiseman.